Home / 20,686,302.90-30,982,215.15-12,183,246.90

Finding the Fourth Proportional to 20,686,302.90, 30,982,215.15 and 12,183,246.90

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Solution

The fourth proportional to 20,686,302.90, 30,982,215.15 and 12,183,246.90 is: 18,247,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686,302.90 : 30,982,215.15 = 12,183,246.90 : x
  2. Step 2: Convert to fraction form
    20,686,302.90/30,982,215.15 = 12,183,246.90/x
  3. Step 3: Cross multiply
    20,686,302.90x = 30,982,215.15 × 12,183,246.90
  4. Step 4: Simplify right side
    20,686,302.90x = 377,463,976,681,370.50
  5. Step 5: Solve for x
    x = 377,463,976,681,370.50/20,686,302.90
  6. Step 6: Final answer
    x = 18,247,048.71

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1.5x scale

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.