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Finding the Fourth Proportional to 655,298,251.01, 904,305,474.80 and 357,940,379.37

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Solution

The fourth proportional to 655,298,251.01, 904,305,474.80 and 357,940,379.37 is: 493,954,385.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,298,251.01 : 904,305,474.80 = 357,940,379.37 : x
  2. Step 2: Convert to fraction form
    655,298,251.01/904,305,474.80 = 357,940,379.37/x
  3. Step 3: Cross multiply
    655,298,251.01x = 904,305,474.80 × 357,940,379.37
  4. Step 4: Simplify right side
    655,298,251.01x = 323,687,444,719,223,680
  5. Step 5: Solve for x
    x = 323,687,444,719,223,680/655,298,251.01
  6. Step 6: Final answer
    x = 493,954,385.23

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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.