Home / 15,321,321.80-22,981,982.70-12,581,448.20

Finding the Fourth Proportional to 15,321,321.80, 22,981,982.70 and 12,581,448.20

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Solution

The fourth proportional to 15,321,321.80, 22,981,982.70 and 12,581,448.20 is: 18,872,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,321.80 : 22,981,982.70 = 12,581,448.20 : x
  2. Step 2: Convert to fraction form
    15,321,321.80/22,981,982.70 = 12,581,448.20/x
  3. Step 3: Cross multiply
    15,321,321.80x = 22,981,982.70 × 12,581,448.20
  4. Step 4: Simplify right side
    15,321,321.80x = 289,146,624,873,346.12
  5. Step 5: Solve for x
    x = 289,146,624,873,346.12/15,321,321.80
  6. Step 6: Final answer
    x = 18,872,172.30

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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.