Home / 129,981,317.40-179,393,469.95-82,301,003.56

Finding the Fourth Proportional to 129,981,317.40, 179,393,469.95 and 82,301,003.56

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Solution

The fourth proportional to 129,981,317.40, 179,393,469.95 and 82,301,003.56 is: 113,587,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981,317.40 : 179,393,469.95 = 82,301,003.56 : x
  2. Step 2: Convert to fraction form
    129,981,317.40/179,393,469.95 = 82,301,003.56/x
  3. Step 3: Cross multiply
    129,981,317.40x = 179,393,469.95 × 82,301,003.56
  4. Step 4: Simplify right side
    129,981,317.40x = 14,764,262,609,425,696
  5. Step 5: Solve for x
    x = 14,764,262,609,425,696/129,981,317.40
  6. Step 6: Final answer
    x = 113,587,574.77

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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.