Home / 128,946,314.70-193,419,472.05-88,131,645.90

Finding the Fourth Proportional to 128,946,314.70, 193,419,472.05 and 88,131,645.90

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Solution

The fourth proportional to 128,946,314.70, 193,419,472.05 and 88,131,645.90 is: 132,197,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,946,314.70 : 193,419,472.05 = 88,131,645.90 : x
  2. Step 2: Convert to fraction form
    128,946,314.70/193,419,472.05 = 88,131,645.90/x
  3. Step 3: Cross multiply
    128,946,314.70x = 193,419,472.05 × 88,131,645.90
  4. Step 4: Simplify right side
    128,946,314.70x = 17,046,376,420,875,550
  5. Step 5: Solve for x
    x = 17,046,376,420,875,550/128,946,314.70
  6. Step 6: Final answer
    x = 132,197,468.85

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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.