Home / 129,023,922.10-178,052,934-71,077,170.10

Finding the Fourth Proportional to 129,023,922.10, 178,052,934 and 71,077,170.10

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Solution

The fourth proportional to 129,023,922.10, 178,052,934 and 71,077,170.10 is: 98,086,451.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,023,922.10 : 178,052,934 = 71,077,170.10 : x
  2. Step 2: Convert to fraction form
    129,023,922.10/178,052,934 = 71,077,170.10/x
  3. Step 3: Cross multiply
    129,023,922.10x = 178,052,934 × 71,077,170.10
  4. Step 4: Simplify right side
    129,023,922.10x = 12,655,498,676,722,072
  5. Step 5: Solve for x
    x = 12,655,498,676,722,072/129,023,922.10
  6. Step 6: Final answer
    x = 98,086,451.49

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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.