Home / 664,132,047.80-994,854,378.90-459,890,742.20

Finding the Fourth Proportional to 664,132,047.80, 994,854,378.90 and 459,890,742.20

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Solution

The fourth proportional to 664,132,047.80, 994,854,378.90 and 459,890,742.20 is: 688,905,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,132,047.80 : 994,854,378.90 = 459,890,742.20 : x
  2. Step 2: Convert to fraction form
    664,132,047.80/994,854,378.90 = 459,890,742.20/x
  3. Step 3: Cross multiply
    664,132,047.80x = 994,854,378.90 × 459,890,742.20
  4. Step 4: Simplify right side
    664,132,047.80x = 457,524,318,693,241,024
  5. Step 5: Solve for x
    x = 457,524,318,693,241,024/664,132,047.80
  6. Step 6: Final answer
    x = 688,905,647.92

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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.