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Finding the Fourth Proportional to 520,838,565.96, 784,375,684.92 and 474,348,107.28

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Solution

The fourth proportional to 520,838,565.96, 784,375,684.92 and 474,348,107.28 is: 714,361,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,838,565.96 : 784,375,684.92 = 474,348,107.28 : x
  2. Step 2: Convert to fraction form
    520,838,565.96/784,375,684.92 = 474,348,107.28/x
  3. Step 3: Cross multiply
    520,838,565.96x = 784,375,684.92 × 474,348,107.28
  4. Step 4: Simplify right side
    520,838,565.96x = 372,067,121,538,255,616
  5. Step 5: Solve for x
    x = 372,067,121,538,255,616/520,838,565.96
  6. Step 6: Final answer
    x = 714,361,696.42

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.