Home / 522,137,930.88-720,550,712.46-287,206,464

Finding the Fourth Proportional to 522,137,930.88, 720,550,712.46 and 287,206,464

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Solution

The fourth proportional to 522,137,930.88, 720,550,712.46 and 287,206,464 is: 396,345,122.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,137,930.88 : 720,550,712.46 = 287,206,464 : x
  2. Step 2: Convert to fraction form
    522,137,930.88/720,550,712.46 = 287,206,464/x
  3. Step 3: Cross multiply
    522,137,930.88x = 720,550,712.46 × 287,206,464
  4. Step 4: Simplify right side
    522,137,930.88x = 206,946,822,258,317,344
  5. Step 5: Solve for x
    x = 206,946,822,258,317,344/522,137,930.88
  6. Step 6: Final answer
    x = 396,345,122.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.