Home / 15,540,052.80-23,310,079.20-7,981,780.80

Finding the Fourth Proportional to 15,540,052.80, 23,310,079.20 and 7,981,780.80

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Solution

The fourth proportional to 15,540,052.80, 23,310,079.20 and 7,981,780.80 is: 11,972,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540,052.80 : 23,310,079.20 = 7,981,780.80 : x
  2. Step 2: Convert to fraction form
    15,540,052.80/23,310,079.20 = 7,981,780.80/x
  3. Step 3: Cross multiply
    15,540,052.80x = 23,310,079.20 × 7,981,780.80
  4. Step 4: Simplify right side
    15,540,052.80x = 186,055,942,605,039.34
  5. Step 5: Solve for x
    x = 186,055,942,605,039.34/15,540,052.80
  6. Step 6: Final answer
    x = 11,972,671.20

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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.