Home / 728,275,293.70-1,092,412,940.55-644,095,039.30

Finding the Fourth Proportional to 728,275,293.70, 1,092,412,940.55 and 644,095,039.30

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Solution

The fourth proportional to 728,275,293.70, 1,092,412,940.55 and 644,095,039.30 is: 966,142,558.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,293.70 : 1,092,412,940.55 = 644,095,039.30 : x
  2. Step 2: Convert to fraction form
    728,275,293.70/1,092,412,940.55 = 644,095,039.30/x
  3. Step 3: Cross multiply
    728,275,293.70x = 1,092,412,940.55 × 644,095,039.30
  4. Step 4: Simplify right side
    728,275,293.70x = 703,617,755,875,380,736
  5. Step 5: Solve for x
    x = 703,617,755,875,380,736/728,275,293.70
  6. Step 6: Final answer
    x = 966,142,558.95

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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.