Home / 485,769,401.66-728,653,531.44-158,244,378.86

Finding the Fourth Proportional to 485,769,401.66, 728,653,531.44 and 158,244,378.86

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Solution

The fourth proportional to 485,769,401.66, 728,653,531.44 and 158,244,378.86 is: 237,366,382.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,769,401.66 : 728,653,531.44 = 158,244,378.86 : x
  2. Step 2: Convert to fraction form
    485,769,401.66/728,653,531.44 = 158,244,378.86/x
  3. Step 3: Cross multiply
    485,769,401.66x = 728,653,531.44 × 158,244,378.86
  4. Step 4: Simplify right side
    485,769,401.66x = 115,305,325,486,868,304
  5. Step 5: Solve for x
    x = 115,305,325,486,868,304/485,769,401.66
  6. Step 6: Final answer
    x = 237,366,382.26

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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.