Home / 135,748,337.72-187,336,939.86-77,013,478.40

Finding the Fourth Proportional to 135,748,337.72, 187,336,939.86 and 77,013,478.40

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Solution

The fourth proportional to 135,748,337.72, 187,336,939.86 and 77,013,478.40 is: 106,281,002.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,748,337.72 : 187,336,939.86 = 77,013,478.40 : x
  2. Step 2: Convert to fraction form
    135,748,337.72/187,336,939.86 = 77,013,478.40/x
  3. Step 3: Cross multiply
    135,748,337.72x = 187,336,939.86 × 77,013,478.40
  4. Step 4: Simplify right side
    135,748,337.72x = 14,427,469,370,493,524
  5. Step 5: Solve for x
    x = 14,427,469,370,493,524/135,748,337.72
  6. Step 6: Final answer
    x = 106,281,002.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.