Home / 664,132,040.80-994,854,368.40-459,890,735.20

Finding the Fourth Proportional to 664,132,040.80, 994,854,368.40 and 459,890,735.20

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Solution

The fourth proportional to 664,132,040.80, 994,854,368.40 and 459,890,735.20 is: 688,905,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,132,040.80 : 994,854,368.40 = 459,890,735.20 : x
  2. Step 2: Convert to fraction form
    664,132,040.80/994,854,368.40 = 459,890,735.20/x
  3. Step 3: Cross multiply
    664,132,040.80x = 994,854,368.40 × 459,890,735.20
  4. Step 4: Simplify right side
    664,132,040.80x = 457,524,306,900,407,616
  5. Step 5: Solve for x
    x = 457,524,306,900,407,616/664,132,040.80
  6. Step 6: Final answer
    x = 688,905,637.42

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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.