Home / 8,649,131.30-11,935,288.20-4,781,421.80

Finding the Fourth Proportional to 8,649,131.30, 11,935,288.20 and 4,781,421.80

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Solution

The fourth proportional to 8,649,131.30, 11,935,288.20 and 4,781,421.80 is: 6,598,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649,131.30 : 11,935,288.20 = 4,781,421.80 : x
  2. Step 2: Convert to fraction form
    8,649,131.30/11,935,288.20 = 4,781,421.80/x
  3. Step 3: Cross multiply
    8,649,131.30x = 11,935,288.20 × 4,781,421.80
  4. Step 4: Simplify right side
    8,649,131.30x = 57,067,647,188,762.76
  5. Step 5: Solve for x
    x = 57,067,647,188,762.76/8,649,131.30
  6. Step 6: Final answer
    x = 6,598,078.49

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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.