Home / 135,612,939.60-203,419,409.40-89,696,437.20

Finding the Fourth Proportional to 135,612,939.60, 203,419,409.40 and 89,696,437.20

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Solution

The fourth proportional to 135,612,939.60, 203,419,409.40 and 89,696,437.20 is: 134,544,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,612,939.60 : 203,419,409.40 = 89,696,437.20 : x
  2. Step 2: Convert to fraction form
    135,612,939.60/203,419,409.40 = 89,696,437.20/x
  3. Step 3: Cross multiply
    135,612,939.60x = 203,419,409.40 × 89,696,437.20
  4. Step 4: Simplify right side
    135,612,939.60x = 18,245,996,280,508,192
  5. Step 5: Solve for x
    x = 18,245,996,280,508,192/135,612,939.60
  6. Step 6: Final answer
    x = 134,544,655.80

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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.