Home / 12,347,186.70-18,520,780.05-11,654,345.10

Finding the Fourth Proportional to 12,347,186.70, 18,520,780.05 and 11,654,345.10

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Solution

The fourth proportional to 12,347,186.70, 18,520,780.05 and 11,654,345.10 is: 17,481,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,186.70 : 18,520,780.05 = 11,654,345.10 : x
  2. Step 2: Convert to fraction form
    12,347,186.70/18,520,780.05 = 11,654,345.10/x
  3. Step 3: Cross multiply
    12,347,186.70x = 18,520,780.05 × 11,654,345.10
  4. Step 4: Simplify right side
    12,347,186.70x = 215,847,562,223,895.25
  5. Step 5: Solve for x
    x = 215,847,562,223,895.25/12,347,186.70
  6. Step 6: Final answer
    x = 17,481,517.65

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1.5x scale

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.