Home / 6,420,761.61-8,860,415.76-3,520,088.97

Finding the Fourth Proportional to 6,420,761.61, 8,860,415.76 and 3,520,088.97

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Solution

The fourth proportional to 6,420,761.61, 8,860,415.76 and 3,520,088.97 is: 4,857,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,761.61 : 8,860,415.76 = 3,520,088.97 : x
  2. Step 2: Convert to fraction form
    6,420,761.61/8,860,415.76 = 3,520,088.97/x
  3. Step 3: Cross multiply
    6,420,761.61x = 8,860,415.76 × 3,520,088.97
  4. Step 4: Simplify right side
    6,420,761.61x = 31,189,451,786,390.17
  5. Step 5: Solve for x
    x = 31,189,451,786,390.17/6,420,761.61
  6. Step 6: Final answer
    x = 4,857,593.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.