Home / 728,275,295.70-1,092,412,943.55-644,095,041.30

Finding the Fourth Proportional to 728,275,295.70, 1,092,412,943.55 and 644,095,041.30

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Solution

The fourth proportional to 728,275,295.70, 1,092,412,943.55 and 644,095,041.30 is: 966,142,561.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,275,295.70 : 1,092,412,943.55 = 644,095,041.30 : x
  2. Step 2: Convert to fraction form
    728,275,295.70/1,092,412,943.55 = 644,095,041.30/x
  3. Step 3: Cross multiply
    728,275,295.70x = 1,092,412,943.55 × 644,095,041.30
  4. Step 4: Simplify right side
    728,275,295.70x = 703,617,759,992,491,776
  5. Step 5: Solve for x
    x = 703,617,759,992,491,776/728,275,295.70
  6. Step 6: Final answer
    x = 966,142,561.95

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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.