Home / 239,234,736.78-330,144,081.39-129,226,498.38

Finding the Fourth Proportional to 239,234,736.78, 330,144,081.39 and 129,226,498.38

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Solution

The fourth proportional to 239,234,736.78, 330,144,081.39 and 129,226,498.38 is: 178,332,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,234,736.78 : 330,144,081.39 = 129,226,498.38 : x
  2. Step 2: Convert to fraction form
    239,234,736.78/330,144,081.39 = 129,226,498.38/x
  3. Step 3: Cross multiply
    239,234,736.78x = 330,144,081.39 × 129,226,498.38
  4. Step 4: Simplify right side
    239,234,736.78x = 42,663,363,598,911,416
  5. Step 5: Solve for x
    x = 42,663,363,598,911,416/239,234,736.78
  6. Step 6: Final answer
    x = 178,332,645.89

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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.