Home / 381,828,839.36-572,508,854.94-148,386,974.94

Finding the Fourth Proportional to 381,828,839.36, 572,508,854.94 and 148,386,974.94

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Solution

The fourth proportional to 381,828,839.36, 572,508,854.94 and 148,386,974.94 is: 222,489,367.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,828,839.36 : 572,508,854.94 = 148,386,974.94 : x
  2. Step 2: Convert to fraction form
    381,828,839.36/572,508,854.94 = 148,386,974.94/x
  3. Step 3: Cross multiply
    381,828,839.36x = 572,508,854.94 × 148,386,974.94
  4. Step 4: Simplify right side
    381,828,839.36x = 84,952,857,110,909,888
  5. Step 5: Solve for x
    x = 84,952,857,110,909,888/381,828,839.36
  6. Step 6: Final answer
    x = 222,489,367.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.