Home / 279,132,981.56-418,744,953.66-82,416,279.78

Finding the Fourth Proportional to 279,132,981.56, 418,744,953.66 and 82,416,279.78

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Solution

The fourth proportional to 279,132,981.56, 418,744,953.66 and 82,416,279.78 is: 123,637,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,132,981.56 : 418,744,953.66 = 82,416,279.78 : x
  2. Step 2: Convert to fraction form
    279,132,981.56/418,744,953.66 = 82,416,279.78/x
  3. Step 3: Cross multiply
    279,132,981.56x = 418,744,953.66 × 82,416,279.78
  4. Step 4: Simplify right side
    279,132,981.56x = 34,511,401,257,305,696
  5. Step 5: Solve for x
    x = 34,511,401,257,305,696/279,132,981.56
  6. Step 6: Final answer
    x = 123,637,848.40

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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.