Home / 1,489,108,003.80-2,233,662,005.70-989,766,040.20

Finding the Fourth Proportional to 1,489,108,003.80, 2,233,662,005.70 and 989,766,040.20

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Solution

The fourth proportional to 1,489,108,003.80, 2,233,662,005.70 and 989,766,040.20 is: 1,484,649,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,108,003.80 : 2,233,662,005.70 = 989,766,040.20 : x
  2. Step 2: Convert to fraction form
    1,489,108,003.80/2,233,662,005.70 = 989,766,040.20/x
  3. Step 3: Cross multiply
    1,489,108,003.80x = 2,233,662,005.70 × 989,766,040.20
  4. Step 4: Simplify right side
    1,489,108,003.80x = 2,210,802,798,526,878,720
  5. Step 5: Solve for x
    x = 2,210,802,798,526,878,720/1,489,108,003.80
  6. Step 6: Final answer
    x = 1,484,649,060.30

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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.