Home / 257,516,005.70-386,274,008.55-155,227,391.30

Finding the Fourth Proportional to 257,516,005.70, 386,274,008.55 and 155,227,391.30

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Solution

The fourth proportional to 257,516,005.70, 386,274,008.55 and 155,227,391.30 is: 232,841,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,516,005.70 : 386,274,008.55 = 155,227,391.30 : x
  2. Step 2: Convert to fraction form
    257,516,005.70/386,274,008.55 = 155,227,391.30/x
  3. Step 3: Cross multiply
    257,516,005.70x = 386,274,008.55 × 155,227,391.30
  4. Step 4: Simplify right side
    257,516,005.70x = 59,960,306,674,210,400
  5. Step 5: Solve for x
    x = 59,960,306,674,210,400/257,516,005.70
  6. Step 6: Final answer
    x = 232,841,086.95

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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.