Home / 269,438,900.11-371,755,417.13-157,869,795.87

Finding the Fourth Proportional to 269,438,900.11, 371,755,417.13 and 157,869,795.87

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Solution

The fourth proportional to 269,438,900.11, 371,755,417.13 and 157,869,795.87 is: 217,819,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,438,900.11 : 371,755,417.13 = 157,869,795.87 : x
  2. Step 2: Convert to fraction form
    269,438,900.11/371,755,417.13 = 157,869,795.87/x
  3. Step 3: Cross multiply
    269,438,900.11x = 371,755,417.13 × 157,869,795.87
  4. Step 4: Simplify right side
    269,438,900.11x = 58,688,951,815,879,800
  5. Step 5: Solve for x
    x = 58,688,951,815,879,800/269,438,900.11
  6. Step 6: Final answer
    x = 217,819,148.58

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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.