Home / 129,674,140.82-178,949,778.99-70,135,502.96

Finding the Fourth Proportional to 129,674,140.82, 178,949,778.99 and 70,135,502.96

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Solution

The fourth proportional to 129,674,140.82, 178,949,778.99 and 70,135,502.96 is: 96,786,704.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,674,140.82 : 178,949,778.99 = 70,135,502.96 : x
  2. Step 2: Convert to fraction form
    129,674,140.82/178,949,778.99 = 70,135,502.96/x
  3. Step 3: Cross multiply
    129,674,140.82x = 178,949,778.99 × 70,135,502.96
  4. Step 4: Simplify right side
    129,674,140.82x = 12,550,732,753,715,840
  5. Step 5: Solve for x
    x = 12,550,732,753,715,840/129,674,140.82
  6. Step 6: Final answer
    x = 96,786,704.54

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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.