Home / 129,910,944-194,808,173.52-77,413,374.72

Finding the Fourth Proportional to 129,910,944, 194,808,173.52 and 77,413,374.72

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Solution

The fourth proportional to 129,910,944, 194,808,173.52 and 77,413,374.72 is: 116,085,355.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,910,944 : 194,808,173.52 = 77,413,374.72 : x
  2. Step 2: Convert to fraction form
    129,910,944/194,808,173.52 = 77,413,374.72/x
  3. Step 3: Cross multiply
    129,910,944x = 194,808,173.52 × 77,413,374.72
  4. Step 4: Simplify right side
    129,910,944x = 15,080,758,135,222,542
  5. Step 5: Solve for x
    x = 15,080,758,135,222,542/129,910,944
  6. Step 6: Final answer
    x = 116,085,355.64

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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.