Home / 400,156,863.38-552,216,471.46-217,016,511.38

Finding the Fourth Proportional to 400,156,863.38, 552,216,471.46 and 217,016,511.38

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Solution

The fourth proportional to 400,156,863.38, 552,216,471.46 and 217,016,511.38 is: 299,482,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,156,863.38 : 552,216,471.46 = 217,016,511.38 : x
  2. Step 2: Convert to fraction form
    400,156,863.38/552,216,471.46 = 217,016,511.38/x
  3. Step 3: Cross multiply
    400,156,863.38x = 552,216,471.46 × 217,016,511.38
  4. Step 4: Simplify right side
    400,156,863.38x = 119,840,092,159,518,912
  5. Step 5: Solve for x
    x = 119,840,092,159,518,912/400,156,863.38
  6. Step 6: Final answer
    x = 299,482,785.70

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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.