Home / 129,084,679.62-178,131,663.95-70,346,091.47

Finding the Fourth Proportional to 129,084,679.62, 178,131,663.95 and 70,346,091.47

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Solution

The fourth proportional to 129,084,679.62, 178,131,663.95 and 70,346,091.47 is: 97,074,775.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,084,679.62 : 178,131,663.95 = 70,346,091.47 : x
  2. Step 2: Convert to fraction form
    129,084,679.62/178,131,663.95 = 70,346,091.47/x
  3. Step 3: Cross multiply
    129,084,679.62x = 178,131,663.95 × 70,346,091.47
  4. Step 4: Simplify right side
    129,084,679.62x = 12,530,866,324,687,612
  5. Step 5: Solve for x
    x = 12,530,866,324,687,612/129,084,679.62
  6. Step 6: Final answer
    x = 97,074,775.73

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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.