Home / 12,481,656.80-18,681,013.20-9,060,216.80

Finding the Fourth Proportional to 12,481,656.80, 18,681,013.20 and 9,060,216.80

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Solution

The fourth proportional to 12,481,656.80, 18,681,013.20 and 9,060,216.80 is: 13,560,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,656.80 : 18,681,013.20 = 9,060,216.80 : x
  2. Step 2: Convert to fraction form
    12,481,656.80/18,681,013.20 = 9,060,216.80/x
  3. Step 3: Cross multiply
    12,481,656.80x = 18,681,013.20 × 9,060,216.80
  4. Step 4: Simplify right side
    12,481,656.80x = 169,254,029,635,661.78
  5. Step 5: Solve for x
    x = 169,254,029,635,661.78/12,481,656.80
  6. Step 6: Final answer
    x = 13,560,221.40

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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.