Home / 850,340,002.10-1,275,510,003.15-644,755,003.70

Finding the Fourth Proportional to 850,340,002.10, 1,275,510,003.15 and 644,755,003.70

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Solution

The fourth proportional to 850,340,002.10, 1,275,510,003.15 and 644,755,003.70 is: 967,132,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,340,002.10 : 1,275,510,003.15 = 644,755,003.70 : x
  2. Step 2: Convert to fraction form
    850,340,002.10/1,275,510,003.15 = 644,755,003.70/x
  3. Step 3: Cross multiply
    850,340,002.10x = 1,275,510,003.15 × 644,755,003.70
  4. Step 4: Simplify right side
    850,340,002.10x = 822,391,456,800,365,440
  5. Step 5: Solve for x
    x = 822,391,456,800,365,440/850,340,002.10
  6. Step 6: Final answer
    x = 967,132,505.55

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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.