Home / 664,132,048.80-994,854,380.40-459,890,743.20

Finding the Fourth Proportional to 664,132,048.80, 994,854,380.40 and 459,890,743.20

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Solution

The fourth proportional to 664,132,048.80, 994,854,380.40 and 459,890,743.20 is: 688,905,649.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,132,048.80 : 994,854,380.40 = 459,890,743.20 : x
  2. Step 2: Convert to fraction form
    664,132,048.80/994,854,380.40 = 459,890,743.20/x
  3. Step 3: Cross multiply
    664,132,048.80x = 994,854,380.40 × 459,890,743.20
  4. Step 4: Simplify right side
    664,132,048.80x = 457,524,320,377,931,520
  5. Step 5: Solve for x
    x = 457,524,320,377,931,520/664,132,048.80
  6. Step 6: Final answer
    x = 688,905,649.42

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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.