Home / 516,552,946.22-712,836,258.24-290,491,862.86

Finding the Fourth Proportional to 516,552,946.22, 712,836,258.24 and 290,491,862.86

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Solution

The fourth proportional to 516,552,946.22, 712,836,258.24 and 290,491,862.86 is: 400,874,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,552,946.22 : 712,836,258.24 = 290,491,862.86 : x
  2. Step 2: Convert to fraction form
    516,552,946.22/712,836,258.24 = 290,491,862.86/x
  3. Step 3: Cross multiply
    516,552,946.22x = 712,836,258.24 × 290,491,862.86
  4. Step 4: Simplify right side
    516,552,946.22x = 207,073,132,565,272,992
  5. Step 5: Solve for x
    x = 207,073,132,565,272,992/516,552,946.22
  6. Step 6: Final answer
    x = 400,874,942.41

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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.