Home / 728,275,805.70-1,092,413,708.55-644,095,551.30

Finding the Fourth Proportional to 728,275,805.70, 1,092,413,708.55 and 644,095,551.30

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Solution

The fourth proportional to 728,275,805.70, 1,092,413,708.55 and 644,095,551.30 is: 966,143,326.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,805.70 : 1,092,413,708.55 = 644,095,551.30 : x
  2. Step 2: Convert to fraction form
    728,275,805.70/1,092,413,708.55 = 644,095,551.30/x
  3. Step 3: Cross multiply
    728,275,805.70x = 1,092,413,708.55 × 644,095,551.30
  4. Step 4: Simplify right side
    728,275,805.70x = 703,618,809,856,189,696
  5. Step 5: Solve for x
    x = 703,618,809,856,189,696/728,275,805.70
  6. Step 6: Final answer
    x = 966,143,326.95

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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.