Home / 728,275,809.20-1,092,413,713.80-644,095,554.80

Finding the Fourth Proportional to 728,275,809.20, 1,092,413,713.80 and 644,095,554.80

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Solution

The fourth proportional to 728,275,809.20, 1,092,413,713.80 and 644,095,554.80 is: 966,143,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,809.20 : 1,092,413,713.80 = 644,095,554.80 : x
  2. Step 2: Convert to fraction form
    728,275,809.20/1,092,413,713.80 = 644,095,554.80/x
  3. Step 3: Cross multiply
    728,275,809.20x = 1,092,413,713.80 × 644,095,554.80
  4. Step 4: Simplify right side
    728,275,809.20x = 703,618,817,061,139,328
  5. Step 5: Solve for x
    x = 703,618,817,061,139,328/728,275,809.20
  6. Step 6: Final answer
    x = 966,143,332.20

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Double scale
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Similar ratio
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1.5x scale

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.