Home / 398,721,680.23-598,082,520.34-107,588,335.91

Finding the Fourth Proportional to 398,721,680.23, 598,082,520.34 and 107,588,335.91

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Solution

The fourth proportional to 398,721,680.23, 598,082,520.34 and 107,588,335.91 is: 161,382,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,721,680.23 : 598,082,520.34 = 107,588,335.91 : x
  2. Step 2: Convert to fraction form
    398,721,680.23/598,082,520.34 = 107,588,335.91/x
  3. Step 3: Cross multiply
    398,721,680.23x = 598,082,520.34 × 107,588,335.91
  4. Step 4: Simplify right side
    398,721,680.23x = 64,346,703,100,239,328
  5. Step 5: Solve for x
    x = 64,346,703,100,239,328/398,721,680.23
  6. Step 6: Final answer
    x = 161,382,503.86

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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.