Home / 431,655,903.52-647,489,366.78-124,948,311.64

Finding the Fourth Proportional to 431,655,903.52, 647,489,366.78 and 124,948,311.64

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Solution

The fourth proportional to 431,655,903.52, 647,489,366.78 and 124,948,311.64 is: 187,424,062.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,655,903.52 : 647,489,366.78 = 124,948,311.64 : x
  2. Step 2: Convert to fraction form
    431,655,903.52/647,489,366.78 = 124,948,311.64/x
  3. Step 3: Cross multiply
    431,655,903.52x = 647,489,366.78 × 124,948,311.64
  4. Step 4: Simplify right side
    431,655,903.52x = 80,902,703,184,013,696
  5. Step 5: Solve for x
    x = 80,902,703,184,013,696/431,655,903.52
  6. Step 6: Final answer
    x = 187,424,062.83

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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.