Home / 20,278,414-30,421,434.59-8,148,839.07

Finding the Fourth Proportional to 20,278,414, 30,421,434.59 and 8,148,839.07

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Solution

The fourth proportional to 20,278,414, 30,421,434.59 and 8,148,839.07 is: 12,224,791.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,414 : 30,421,434.59 = 8,148,839.07 : x
  2. Step 2: Convert to fraction form
    20,278,414/30,421,434.59 = 8,148,839.07/x
  3. Step 3: Cross multiply
    20,278,414x = 30,421,434.59 × 8,148,839.07
  4. Step 4: Simplify right side
    20,278,414x = 247,899,374,752,441.44
  5. Step 5: Solve for x
    x = 247,899,374,752,441.44/20,278,414
  6. Step 6: Final answer
    x = 12,224,791.09

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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.