Home / 13,790,867.70-20,686,301.55-12,302,832.90

Finding the Fourth Proportional to 13,790,867.70, 20,686,301.55 and 12,302,832.90

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Solution

The fourth proportional to 13,790,867.70, 20,686,301.55 and 12,302,832.90 is: 18,454,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,867.70 : 20,686,301.55 = 12,302,832.90 : x
  2. Step 2: Convert to fraction form
    13,790,867.70/20,686,301.55 = 12,302,832.90/x
  3. Step 3: Cross multiply
    13,790,867.70x = 20,686,301.55 × 12,302,832.90
  4. Step 4: Simplify right side
    13,790,867.70x = 254,500,111,288,661
  5. Step 5: Solve for x
    x = 254,500,111,288,661/13,790,867.70
  6. Step 6: Final answer
    x = 18,454,249.35

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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.