Home / 782,760,545.71-1,079,195,658.31-506,985,135.28

Finding the Fourth Proportional to 782,760,545.71, 1,079,195,658.31 and 506,985,135.28

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Solution

The fourth proportional to 782,760,545.71, 1,079,195,658.31 and 506,985,135.28 is: 698,982,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,760,545.71 : 1,079,195,658.31 = 506,985,135.28 : x
  2. Step 2: Convert to fraction form
    782,760,545.71/1,079,195,658.31 = 506,985,135.28/x
  3. Step 3: Cross multiply
    782,760,545.71x = 1,079,195,658.31 × 506,985,135.28
  4. Step 4: Simplify right side
    782,760,545.71x = 547,136,156,826,155,392
  5. Step 5: Solve for x
    x = 547,136,156,826,155,392/782,760,545.71
  6. Step 6: Final answer
    x = 698,982,798.54

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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.