Home / 664,848,040.80-997,272,061.20-442,918,279.20

Finding the Fourth Proportional to 664,848,040.80, 997,272,061.20 and 442,918,279.20

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Solution

The fourth proportional to 664,848,040.80, 997,272,061.20 and 442,918,279.20 is: 664,377,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,040.80 : 997,272,061.20 = 442,918,279.20 : x
  2. Step 2: Convert to fraction form
    664,848,040.80/997,272,061.20 = 442,918,279.20/x
  3. Step 3: Cross multiply
    664,848,040.80x = 997,272,061.20 × 442,918,279.20
  4. Step 4: Simplify right side
    664,848,040.80x = 441,710,025,240,941,120
  5. Step 5: Solve for x
    x = 441,710,025,240,941,120/664,848,040.80
  6. Step 6: Final answer
    x = 664,377,418.80

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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.