Home / 18,891,001.74-28,336,660.32-5,245,212.25

Finding the Fourth Proportional to 18,891,001.74, 28,336,660.32 and 5,245,212.25

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Solution

The fourth proportional to 18,891,001.74, 28,336,660.32 and 5,245,212.25 is: 7,867,862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891,001.74 : 28,336,660.32 = 5,245,212.25 : x
  2. Step 2: Convert to fraction form
    18,891,001.74/28,336,660.32 = 5,245,212.25/x
  3. Step 3: Cross multiply
    18,891,001.74x = 28,336,660.32 × 5,245,212.25
  4. Step 4: Simplify right side
    18,891,001.74x = 148,631,797,754,243.25
  5. Step 5: Solve for x
    x = 148,631,797,754,243.25/18,891,001.74
  6. Step 6: Final answer
    x = 7,867,862.16

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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.