Home / 129,342,296.70-193,694,580.45-85,976,711.10

Finding the Fourth Proportional to 129,342,296.70, 193,694,580.45 and 85,976,711.10

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Solution

The fourth proportional to 129,342,296.70, 193,694,580.45 and 85,976,711.10 is: 128,753,110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,342,296.70 : 193,694,580.45 = 85,976,711.10 : x
  2. Step 2: Convert to fraction form
    129,342,296.70/193,694,580.45 = 85,976,711.10/x
  3. Step 3: Cross multiply
    129,342,296.70x = 193,694,580.45 × 85,976,711.10
  4. Step 4: Simplify right side
    129,342,296.70x = 16,653,222,984,985,356
  5. Step 5: Solve for x
    x = 16,653,222,984,985,356/129,342,296.70
  6. Step 6: Final answer
    x = 128,753,110.23

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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.