Home / 20,278,412.44-30,421,432.24-8,148,837.50

Finding the Fourth Proportional to 20,278,412.44, 30,421,432.24 and 8,148,837.50

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Solution

The fourth proportional to 20,278,412.44, 30,421,432.24 and 8,148,837.50 is: 12,224,788.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,412.44 : 30,421,432.24 = 8,148,837.50 : x
  2. Step 2: Convert to fraction form
    20,278,412.44/30,421,432.24 = 8,148,837.50/x
  3. Step 3: Cross multiply
    20,278,412.44x = 30,421,432.24 × 8,148,837.50
  4. Step 4: Simplify right side
    20,278,412.44x = 247,899,307,782,622.12
  5. Step 5: Solve for x
    x = 247,899,307,782,622.12/20,278,412.44
  6. Step 6: Final answer
    x = 12,224,788.73

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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.