Home / 12,451,659.48-18,678,048.66-3,815,127.18

Finding the Fourth Proportional to 12,451,659.48, 18,678,048.66 and 3,815,127.18

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Solution

The fourth proportional to 12,451,659.48, 18,678,048.66 and 3,815,127.18 is: 5,722,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,659.48 : 18,678,048.66 = 3,815,127.18 : x
  2. Step 2: Convert to fraction form
    12,451,659.48/18,678,048.66 = 3,815,127.18/x
  3. Step 3: Cross multiply
    12,451,659.48x = 18,678,048.66 × 3,815,127.18
  4. Step 4: Simplify right side
    12,451,659.48x = 71,259,131,112,128.58
  5. Step 5: Solve for x
    x = 71,259,131,112,128.58/12,451,659.48
  6. Step 6: Final answer
    x = 5,722,862.18

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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.