Home / 487,213,498.71-730,863,193.86-137,462,630.36

Finding the Fourth Proportional to 487,213,498.71, 730,863,193.86 and 137,462,630.36

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Solution

The fourth proportional to 487,213,498.71, 730,863,193.86 and 137,462,630.36 is: 206,206,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,213,498.71 : 730,863,193.86 = 137,462,630.36 : x
  2. Step 2: Convert to fraction form
    487,213,498.71/730,863,193.86 = 137,462,630.36/x
  3. Step 3: Cross multiply
    487,213,498.71x = 730,863,193.86 × 137,462,630.36
  4. Step 4: Simplify right side
    487,213,498.71x = 100,466,377,057,651,872
  5. Step 5: Solve for x
    x = 100,466,377,057,651,872/487,213,498.71
  6. Step 6: Final answer
    x = 206,206,062.28

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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.