Home / 20,600,199.85-28,428,306.94-11,180,994.22

Finding the Fourth Proportional to 20,600,199.85, 28,428,306.94 and 11,180,994.22

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Solution

The fourth proportional to 20,600,199.85, 28,428,306.94 and 11,180,994.22 is: 15,429,788.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600,199.85 : 28,428,306.94 = 11,180,994.22 : x
  2. Step 2: Convert to fraction form
    20,600,199.85/28,428,306.94 = 11,180,994.22/x
  3. Step 3: Cross multiply
    20,600,199.85x = 28,428,306.94 × 11,180,994.22
  4. Step 4: Simplify right side
    20,600,199.85x = 317,856,735,382,479.38
  5. Step 5: Solve for x
    x = 317,856,735,382,479.38/20,600,199.85
  6. Step 6: Final answer
    x = 15,429,788.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.