Home / 7,981,801.20-11,972,701.80-7,320,452.40

Finding the Fourth Proportional to 7,981,801.20, 11,972,701.80 and 7,320,452.40

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Solution

The fourth proportional to 7,981,801.20, 11,972,701.80 and 7,320,452.40 is: 10,980,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,801.20 : 11,972,701.80 = 7,320,452.40 : x
  2. Step 2: Convert to fraction form
    7,981,801.20/11,972,701.80 = 7,320,452.40/x
  3. Step 3: Cross multiply
    7,981,801.20x = 11,972,701.80 × 7,320,452.40
  4. Step 4: Simplify right side
    7,981,801.20x = 87,645,593,626,294.33
  5. Step 5: Solve for x
    x = 87,645,593,626,294.33/7,981,801.20
  6. Step 6: Final answer
    x = 10,980,678.60

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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.