Home / 453,039,073.20-679,558,609.80-161,915,693.40

Finding the Fourth Proportional to 453,039,073.20, 679,558,609.80 and 161,915,693.40

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Solution

The fourth proportional to 453,039,073.20, 679,558,609.80 and 161,915,693.40 is: 242,873,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,039,073.20 : 679,558,609.80 = 161,915,693.40 : x
  2. Step 2: Convert to fraction form
    453,039,073.20/679,558,609.80 = 161,915,693.40/x
  3. Step 3: Cross multiply
    453,039,073.20x = 679,558,609.80 × 161,915,693.40
  4. Step 4: Simplify right side
    453,039,073.20x = 110,031,203,511,707,024
  5. Step 5: Solve for x
    x = 110,031,203,511,707,024/453,039,073.20
  6. Step 6: Final answer
    x = 242,873,540.10

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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.