Home / 6,420,761.11-8,860,415.07-3,520,088.47

Finding the Fourth Proportional to 6,420,761.11, 8,860,415.07 and 3,520,088.47

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Solution

The fourth proportional to 6,420,761.11, 8,860,415.07 and 3,520,088.47 is: 4,857,593.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,761.11 : 8,860,415.07 = 3,520,088.47 : x
  2. Step 2: Convert to fraction form
    6,420,761.11/8,860,415.07 = 3,520,088.47/x
  3. Step 3: Cross multiply
    6,420,761.11x = 8,860,415.07 × 3,520,088.47
  4. Step 4: Simplify right side
    6,420,761.11x = 31,189,444,927,321.25
  5. Step 5: Solve for x
    x = 31,189,444,927,321.25/6,420,761.11
  6. Step 6: Final answer
    x = 4,857,593.11

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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.