Home / 129,981,320.65-179,393,474.44-82,301,006.82

Finding the Fourth Proportional to 129,981,320.65, 179,393,474.44 and 82,301,006.82

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Solution

The fourth proportional to 129,981,320.65, 179,393,474.44 and 82,301,006.82 is: 113,587,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981,320.65 : 179,393,474.44 = 82,301,006.82 : x
  2. Step 2: Convert to fraction form
    129,981,320.65/179,393,474.44 = 82,301,006.82/x
  3. Step 3: Cross multiply
    129,981,320.65x = 179,393,474.44 × 82,301,006.82
  4. Step 4: Simplify right side
    129,981,320.65x = 14,764,263,563,349,934
  5. Step 5: Solve for x
    x = 14,764,263,563,349,934/129,981,320.65
  6. Step 6: Final answer
    x = 113,587,579.27

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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.