Home / 6,420,580.12-8,860,398.44-3,519,908.76

Finding the Fourth Proportional to 6,420,580.12, 8,860,398.44 and 3,519,908.76

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Solution

The fourth proportional to 6,420,580.12, 8,860,398.44 and 3,519,908.76 is: 4,857,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,580.12 : 8,860,398.44 = 3,519,908.76 : x
  2. Step 2: Convert to fraction form
    6,420,580.12/8,860,398.44 = 3,519,908.76/x
  3. Step 3: Cross multiply
    6,420,580.12x = 8,860,398.44 × 3,519,908.76
  4. Step 4: Simplify right side
    6,420,580.12x = 31,187,794,101,673.29
  5. Step 5: Solve for x
    x = 31,187,794,101,673.29/6,420,580.12
  6. Step 6: Final answer
    x = 4,857,472.92

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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.