Home / 516,552,947.16-712,836,259.53-290,491,863.80

Finding the Fourth Proportional to 516,552,947.16, 712,836,259.53 and 290,491,863.80

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Solution

The fourth proportional to 516,552,947.16, 712,836,259.53 and 290,491,863.80 is: 400,874,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,552,947.16 : 712,836,259.53 = 290,491,863.80 : x
  2. Step 2: Convert to fraction form
    516,552,947.16/712,836,259.53 = 290,491,863.80/x
  3. Step 3: Cross multiply
    516,552,947.16x = 712,836,259.53 × 290,491,863.80
  4. Step 4: Simplify right side
    516,552,947.16x = 207,073,133,610,436,704
  5. Step 5: Solve for x
    x = 207,073,133,610,436,704/516,552,947.16
  6. Step 6: Final answer
    x = 400,874,943.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.