Home / 7,987,739.20-11,981,608.80-4,964,430.40

Finding the Fourth Proportional to 7,987,739.20, 11,981,608.80 and 4,964,430.40

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Solution

The fourth proportional to 7,987,739.20, 11,981,608.80 and 4,964,430.40 is: 7,446,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987,739.20 : 11,981,608.80 = 4,964,430.40 : x
  2. Step 2: Convert to fraction form
    7,987,739.20/11,981,608.80 = 4,964,430.40/x
  3. Step 3: Cross multiply
    7,987,739.20x = 11,981,608.80 × 4,964,430.40
  4. Step 4: Simplify right side
    7,987,739.20x = 59,481,862,967,627.53
  5. Step 5: Solve for x
    x = 59,481,862,967,627.53/7,987,739.20
  6. Step 6: Final answer
    x = 7,446,645.60

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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.