Home / 18,145,780.80-27,231,112.80-8,055,643.20

Finding the Fourth Proportional to 18,145,780.80, 27,231,112.80 and 8,055,643.20

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Solution

The fourth proportional to 18,145,780.80, 27,231,112.80 and 8,055,643.20 is: 12,088,988.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,780.80 : 27,231,112.80 = 8,055,643.20 : x
  2. Step 2: Convert to fraction form
    18,145,780.80/27,231,112.80 = 8,055,643.20/x
  3. Step 3: Cross multiply
    18,145,780.80x = 27,231,112.80 × 8,055,643.20
  4. Step 4: Simplify right side
    18,145,780.80x = 219,364,128,655,752.97
  5. Step 5: Solve for x
    x = 219,364,128,655,752.97/18,145,780.80
  6. Step 6: Final answer
    x = 12,088,988.13

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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.