Home / 20,486,519.70-30,720,922.20-10,247,423.10

Finding the Fourth Proportional to 20,486,519.70, 30,720,922.20 and 10,247,423.10

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Solution

The fourth proportional to 20,486,519.70, 30,720,922.20 and 10,247,423.10 is: 15,366,704.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486,519.70 : 30,720,922.20 = 10,247,423.10 : x
  2. Step 2: Convert to fraction form
    20,486,519.70/30,720,922.20 = 10,247,423.10/x
  3. Step 3: Cross multiply
    20,486,519.70x = 30,720,922.20 × 10,247,423.10
  4. Step 4: Simplify right side
    20,486,519.70x = 314,810,287,805,582.81
  5. Step 5: Solve for x
    x = 314,810,287,805,582.81/20,486,519.70
  6. Step 6: Final answer
    x = 15,366,704.18

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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.