Home / 187,819,489.40-281,729,234.10-115,260,078.20

Finding the Fourth Proportional to 187,819,489.40, 281,729,234.10 and 115,260,078.20

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Solution

The fourth proportional to 187,819,489.40, 281,729,234.10 and 115,260,078.20 is: 172,890,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,819,489.40 : 281,729,234.10 = 115,260,078.20 : x
  2. Step 2: Convert to fraction form
    187,819,489.40/281,729,234.10 = 115,260,078.20/x
  3. Step 3: Cross multiply
    187,819,489.40x = 281,729,234.10 × 115,260,078.20
  4. Step 4: Simplify right side
    187,819,489.40x = 32,472,133,553,592,112
  5. Step 5: Solve for x
    x = 32,472,133,553,592,112/187,819,489.40
  6. Step 6: Final answer
    x = 172,890,117.30

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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.