Home / 2,040,481,981.10-3,060,722,971.65-660,435,992.30

Finding the Fourth Proportional to 2,040,481,981.10, 3,060,722,971.65 and 660,435,992.30

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Solution

The fourth proportional to 2,040,481,981.10, 3,060,722,971.65 and 660,435,992.30 is: 990,653,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040,481,981.10 : 3,060,722,971.65 = 660,435,992.30 : x
  2. Step 2: Convert to fraction form
    2,040,481,981.10/3,060,722,971.65 = 660,435,992.30/x
  3. Step 3: Cross multiply
    2,040,481,981.10x = 3,060,722,971.65 × 660,435,992.30
  4. Step 4: Simplify right side
    2,040,481,981.10x = 2,021,411,612,937,072,384
  5. Step 5: Solve for x
    x = 2,021,411,612,937,072,384/2,040,481,981.10
  6. Step 6: Final answer
    x = 990,653,988.45

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Half scale
Find fourth proportional to 4,080,963,962.20, 6,121,445,943.30 and 1,320,871,984.60
Double scale
Find fourth proportional to 2,040,481,982.10, 3,060,722,973.15 and 660,435,993.30
Similar ratio
Find fourth proportional to 3,060,722,971.65, 4,591,084,457.48 and 990,653,988.45
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.