Home / 2,086,210,009.80-3,129,315,014.70-1,259,712,966.60

Finding the Fourth Proportional to 2,086,210,009.80, 3,129,315,014.70 and 1,259,712,966.60

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Solution

The fourth proportional to 2,086,210,009.80, 3,129,315,014.70 and 1,259,712,966.60 is: 1,889,569,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,210,009.80 : 3,129,315,014.70 = 1,259,712,966.60 : x
  2. Step 2: Convert to fraction form
    2,086,210,009.80/3,129,315,014.70 = 1,259,712,966.60/x
  3. Step 3: Cross multiply
    2,086,210,009.80x = 3,129,315,014.70 × 1,259,712,966.60
  4. Step 4: Simplify right side
    2,086,210,009.80x = 3,942,038,700,593,658,880
  5. Step 5: Solve for x
    x = 3,942,038,700,593,658,880/2,086,210,009.80
  6. Step 6: Final answer
    x = 1,889,569,449.90

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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.