Home / 187,812,086.60-281,718,129.90-85,775,414.60

Finding the Fourth Proportional to 187,812,086.60, 281,718,129.90 and 85,775,414.60

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Solution

The fourth proportional to 187,812,086.60, 281,718,129.90 and 85,775,414.60 is: 128,663,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,812,086.60 : 281,718,129.90 = 85,775,414.60 : x
  2. Step 2: Convert to fraction form
    187,812,086.60/281,718,129.90 = 85,775,414.60/x
  3. Step 3: Cross multiply
    187,812,086.60x = 281,718,129.90 × 85,775,414.60
  4. Step 4: Simplify right side
    187,812,086.60x = 24,164,489,392,509,152
  5. Step 5: Solve for x
    x = 24,164,489,392,509,152/187,812,086.60
  6. Step 6: Final answer
    x = 128,663,121.90

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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.