Home / 279,221,115.96-418,044,240.78-147,765,641.64

Finding the Fourth Proportional to 279,221,115.96, 418,044,240.78 and 147,765,641.64

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Solution

The fourth proportional to 279,221,115.96, 418,044,240.78 and 147,765,641.64 is: 221,231,747.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,221,115.96 : 418,044,240.78 = 147,765,641.64 : x
  2. Step 2: Convert to fraction form
    279,221,115.96/418,044,240.78 = 147,765,641.64/x
  3. Step 3: Cross multiply
    279,221,115.96x = 418,044,240.78 × 147,765,641.64
  4. Step 4: Simplify right side
    279,221,115.96x = 61,772,575,472,763,344
  5. Step 5: Solve for x
    x = 61,772,575,472,763,344/279,221,115.96
  6. Step 6: Final answer
    x = 221,231,747.68

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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.