Home / 187,819,709.40-281,729,564.10-115,260,298.20

Finding the Fourth Proportional to 187,819,709.40, 281,729,564.10 and 115,260,298.20

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Solution

The fourth proportional to 187,819,709.40, 281,729,564.10 and 115,260,298.20 is: 172,890,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,819,709.40 : 281,729,564.10 = 115,260,298.20 : x
  2. Step 2: Convert to fraction form
    187,819,709.40/281,729,564.10 = 115,260,298.20/x
  3. Step 3: Cross multiply
    187,819,709.40x = 281,729,564.10 × 115,260,298.20
  4. Step 4: Simplify right side
    187,819,709.40x = 32,472,233,569,922,020
  5. Step 5: Solve for x
    x = 32,472,233,569,922,020/187,819,709.40
  6. Step 6: Final answer
    x = 172,890,447.30

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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.