Home / 440,125,920.80-660,188,881.20-310,985,757.80

Finding the Fourth Proportional to 440,125,920.80, 660,188,881.20 and 310,985,757.80

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Solution

The fourth proportional to 440,125,920.80, 660,188,881.20 and 310,985,757.80 is: 466,478,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,125,920.80 : 660,188,881.20 = 310,985,757.80 : x
  2. Step 2: Convert to fraction form
    440,125,920.80/660,188,881.20 = 310,985,757.80/x
  3. Step 3: Cross multiply
    440,125,920.80x = 660,188,881.20 × 310,985,757.80
  4. Step 4: Simplify right side
    440,125,920.80x = 205,309,339,511,116,192
  5. Step 5: Solve for x
    x = 205,309,339,511,116,192/440,125,920.80
  6. Step 6: Final answer
    x = 466,478,636.70

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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.