Home / 129,981,322.66-179,393,477.20-82,301,008.82

Finding the Fourth Proportional to 129,981,322.66, 179,393,477.20 and 82,301,008.82

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Solution

The fourth proportional to 129,981,322.66, 179,393,477.20 and 82,301,008.82 is: 113,587,582.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981,322.66 : 179,393,477.20 = 82,301,008.82 : x
  2. Step 2: Convert to fraction form
    129,981,322.66/179,393,477.20 = 82,301,008.82/x
  3. Step 3: Cross multiply
    129,981,322.66x = 179,393,477.20 × 82,301,008.82
  4. Step 4: Simplify right side
    129,981,322.66x = 14,764,264,149,287,666
  5. Step 5: Solve for x
    x = 14,764,264,149,287,666/129,981,322.66
  6. Step 6: Final answer
    x = 113,587,582.02

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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.