Home / 129,981,319.65-179,393,473.06-82,301,005.82

Finding the Fourth Proportional to 129,981,319.65, 179,393,473.06 and 82,301,005.82

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Solution

The fourth proportional to 129,981,319.65, 179,393,473.06 and 82,301,005.82 is: 113,587,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981,319.65 : 179,393,473.06 = 82,301,005.82 : x
  2. Step 2: Convert to fraction form
    129,981,319.65/179,393,473.06 = 82,301,005.82/x
  3. Step 3: Cross multiply
    129,981,319.65x = 179,393,473.06 × 82,301,005.82
  4. Step 4: Simplify right side
    129,981,319.65x = 14,764,263,270,623,806
  5. Step 5: Solve for x
    x = 14,764,263,270,623,806/129,981,319.65
  6. Step 6: Final answer
    x = 113,587,577.89

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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.