Home / 20,354,569.20-30,581,620.20-15,315,721.20

Finding the Fourth Proportional to 20,354,569.20, 30,581,620.20 and 15,315,721.20

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Solution

The fourth proportional to 20,354,569.20, 30,581,620.20 and 15,315,721.20 is: 23,011,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354,569.20 : 30,581,620.20 = 15,315,721.20 : x
  2. Step 2: Convert to fraction form
    20,354,569.20/30,581,620.20 = 15,315,721.20/x
  3. Step 3: Cross multiply
    20,354,569.20x = 30,581,620.20 × 15,315,721.20
  4. Step 4: Simplify right side
    20,354,569.20x = 468,379,568,827,488.19
  5. Step 5: Solve for x
    x = 468,379,568,827,488.19/20,354,569.20
  6. Step 6: Final answer
    x = 23,011,028.35

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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.