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Finding the Fourth Proportional to 172,654,265.60, 258,981,398.40 and 164,691,641.60

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Solution

The fourth proportional to 172,654,265.60, 258,981,398.40 and 164,691,641.60 is: 247,037,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,654,265.60 : 258,981,398.40 = 164,691,641.60 : x
  2. Step 2: Convert to fraction form
    172,654,265.60/258,981,398.40 = 164,691,641.60/x
  3. Step 3: Cross multiply
    172,654,265.60x = 258,981,398.40 × 164,691,641.60
  4. Step 4: Simplify right side
    172,654,265.60x = 42,652,071,646,359,616
  5. Step 5: Solve for x
    x = 42,652,071,646,359,616/172,654,265.60
  6. Step 6: Final answer
    x = 247,037,462.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.