Home / 129,981,237.78-179,393,866.38-82,958,609.10

Finding the Fourth Proportional to 129,981,237.78, 179,393,866.38 and 82,958,609.10

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Solution

The fourth proportional to 129,981,237.78, 179,393,866.38 and 82,958,609.10 is: 114,495,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981,237.78 : 179,393,866.38 = 82,958,609.10 : x
  2. Step 2: Convert to fraction form
    129,981,237.78/179,393,866.38 = 82,958,609.10/x
  3. Step 3: Cross multiply
    129,981,237.78x = 179,393,866.38 × 82,958,609.10
  4. Step 4: Simplify right side
    129,981,237.78x = 14,882,265,636,628,780
  5. Step 5: Solve for x
    x = 14,882,265,636,628,780/129,981,237.78
  6. Step 6: Final answer
    x = 114,495,490.97

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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.