Home / 19,917,997.20-29,876,995.80-12,265,246.80

Finding the Fourth Proportional to 19,917,997.20, 29,876,995.80 and 12,265,246.80

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Solution

The fourth proportional to 19,917,997.20, 29,876,995.80 and 12,265,246.80 is: 18,397,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917,997.20 : 29,876,995.80 = 12,265,246.80 : x
  2. Step 2: Convert to fraction form
    19,917,997.20/29,876,995.80 = 12,265,246.80/x
  3. Step 3: Cross multiply
    19,917,997.20x = 29,876,995.80 × 12,265,246.80
  4. Step 4: Simplify right side
    19,917,997.20x = 366,448,727,129,563.50
  5. Step 5: Solve for x
    x = 366,448,727,129,563.50/19,917,997.20
  6. Step 6: Final answer
    x = 18,397,870.20

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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.