Home / 20,262,738.23-30,399,789.59-8,140,713.91

Finding the Fourth Proportional to 20,262,738.23, 30,399,789.59 and 8,140,713.91

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Solution

The fourth proportional to 20,262,738.23, 30,399,789.59 and 8,140,713.91 is: 12,213,353.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262,738.23 : 30,399,789.59 = 8,140,713.91 : x
  2. Step 2: Convert to fraction form
    20,262,738.23/30,399,789.59 = 8,140,713.91/x
  3. Step 3: Cross multiply
    20,262,738.23x = 30,399,789.59 × 8,140,713.91
  4. Step 4: Simplify right side
    20,262,738.23x = 247,475,989,920,738.50
  5. Step 5: Solve for x
    x = 247,475,989,920,738.50/20,262,738.23
  6. Step 6: Final answer
    x = 12,213,353.75

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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.