Home / 8,859,309.20-13,288,963.80-8,691,347.60

Finding the Fourth Proportional to 8,859,309.20, 13,288,963.80 and 8,691,347.60

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Solution

The fourth proportional to 8,859,309.20, 13,288,963.80 and 8,691,347.60 is: 13,037,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859,309.20 : 13,288,963.80 = 8,691,347.60 : x
  2. Step 2: Convert to fraction form
    8,859,309.20/13,288,963.80 = 8,691,347.60/x
  3. Step 3: Cross multiply
    8,859,309.20x = 13,288,963.80 × 8,691,347.60
  4. Step 4: Simplify right side
    8,859,309.20x = 115,499,003,629,616.88
  5. Step 5: Solve for x
    x = 115,499,003,629,616.88/8,859,309.20
  6. Step 6: Final answer
    x = 13,037,021.40

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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.