Home / 19,150,617.70-28,752,498.60-11,976,164.20

Finding the Fourth Proportional to 19,150,617.70, 28,752,498.60 and 11,976,164.20

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Solution

The fourth proportional to 19,150,617.70, 28,752,498.60 and 11,976,164.20 is: 17,980,863.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150,617.70 : 28,752,498.60 = 11,976,164.20 : x
  2. Step 2: Convert to fraction form
    19,150,617.70/28,752,498.60 = 11,976,164.20/x
  3. Step 3: Cross multiply
    19,150,617.70x = 28,752,498.60 × 11,976,164.20
  4. Step 4: Simplify right side
    19,150,617.70x = 344,344,644,393,870.12
  5. Step 5: Solve for x
    x = 344,344,644,393,870.12/19,150,617.70
  6. Step 6: Final answer
    x = 17,980,863.58

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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.