Home / 724,991,011.80-1,087,486,517.70-449,491,997.40

Finding the Fourth Proportional to 724,991,011.80, 1,087,486,517.70 and 449,491,997.40

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Solution

The fourth proportional to 724,991,011.80, 1,087,486,517.70 and 449,491,997.40 is: 674,237,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,991,011.80 : 1,087,486,517.70 = 449,491,997.40 : x
  2. Step 2: Convert to fraction form
    724,991,011.80/1,087,486,517.70 = 449,491,997.40/x
  3. Step 3: Cross multiply
    724,991,011.80x = 1,087,486,517.70 × 449,491,997.40
  4. Step 4: Simplify right side
    724,991,011.80x = 488,816,486,986,543,424
  5. Step 5: Solve for x
    x = 488,816,486,986,543,424/724,991,011.80
  6. Step 6: Final answer
    x = 674,237,996.10

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Half scale
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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.