Home / 724,377,825.80-1,086,566,738.70-521,816,136.20

Finding the Fourth Proportional to 724,377,825.80, 1,086,566,738.70 and 521,816,136.20

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Solution

The fourth proportional to 724,377,825.80, 1,086,566,738.70 and 521,816,136.20 is: 782,724,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,377,825.80 : 1,086,566,738.70 = 521,816,136.20 : x
  2. Step 2: Convert to fraction form
    724,377,825.80/1,086,566,738.70 = 521,816,136.20/x
  3. Step 3: Cross multiply
    724,377,825.80x = 1,086,566,738.70 × 521,816,136.20
  4. Step 4: Simplify right side
    724,377,825.80x = 566,988,057,311,868,992
  5. Step 5: Solve for x
    x = 566,988,057,311,868,992/724,377,825.80
  6. Step 6: Final answer
    x = 782,724,204.30

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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.