Home / 511,951,977.76-706,513,737.76-288,941,373.42

Finding the Fourth Proportional to 511,951,977.76, 706,513,737.76 and 288,941,373.42

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Solution

The fourth proportional to 511,951,977.76, 706,513,737.76 and 288,941,373.42 is: 398,750,387.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,951,977.76 : 706,513,737.76 = 288,941,373.42 : x
  2. Step 2: Convert to fraction form
    511,951,977.76/706,513,737.76 = 288,941,373.42/x
  3. Step 3: Cross multiply
    511,951,977.76x = 706,513,737.76 × 288,941,373.42
  4. Step 4: Simplify right side
    511,951,977.76x = 204,141,049,728,472,128
  5. Step 5: Solve for x
    x = 204,141,049,728,472,128/511,951,977.76
  6. Step 6: Final answer
    x = 398,750,387.92

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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.