Home / 485,787,461.33-728,681,164.32-136,085,304.31

Finding the Fourth Proportional to 485,787,461.33, 728,681,164.32 and 136,085,304.31

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Solution

The fourth proportional to 485,787,461.33, 728,681,164.32 and 136,085,304.31 is: 204,127,948.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,787,461.33 : 728,681,164.32 = 136,085,304.31 : x
  2. Step 2: Convert to fraction form
    485,787,461.33/728,681,164.32 = 136,085,304.31/x
  3. Step 3: Cross multiply
    485,787,461.33x = 728,681,164.32 × 136,085,304.31
  4. Step 4: Simplify right side
    485,787,461.33x = 99,162,797,991,452,320
  5. Step 5: Solve for x
    x = 99,162,797,991,452,320/485,787,461.33
  6. Step 6: Final answer
    x = 204,127,948.71

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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.