Home / 516,552,948.22-712,836,260.99-290,491,864.86

Finding the Fourth Proportional to 516,552,948.22, 712,836,260.99 and 290,491,864.86

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Solution

The fourth proportional to 516,552,948.22, 712,836,260.99 and 290,491,864.86 is: 400,874,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,552,948.22 : 712,836,260.99 = 290,491,864.86 : x
  2. Step 2: Convert to fraction form
    516,552,948.22/712,836,260.99 = 290,491,864.86/x
  3. Step 3: Cross multiply
    516,552,948.22x = 712,836,260.99 × 290,491,864.86
  4. Step 4: Simplify right side
    516,552,948.22x = 207,073,134,794,814,784
  5. Step 5: Solve for x
    x = 207,073,134,794,814,784/516,552,948.22
  6. Step 6: Final answer
    x = 400,874,945.17

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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.