Home / 8,816,721.20-13,221,971.40-3,137,130.80

Finding the Fourth Proportional to 8,816,721.20, 13,221,971.40 and 3,137,130.80

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Solution

The fourth proportional to 8,816,721.20, 13,221,971.40 and 3,137,130.80 is: 4,704,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816,721.20 : 13,221,971.40 = 3,137,130.80 : x
  2. Step 2: Convert to fraction form
    8,816,721.20/13,221,971.40 = 3,137,130.80/x
  3. Step 3: Cross multiply
    8,816,721.20x = 13,221,971.40 × 3,137,130.80
  4. Step 4: Simplify right side
    8,816,721.20x = 41,479,053,715,659.12
  5. Step 5: Solve for x
    x = 41,479,053,715,659.12/8,816,721.20
  6. Step 6: Final answer
    x = 4,704,589.47

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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.