Home / 20,705,046.22-28,573,077.54-12,008,375.92

Finding the Fourth Proportional to 20,705,046.22, 28,573,077.54 and 12,008,375.92

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Solution

The fourth proportional to 20,705,046.22, 28,573,077.54 and 12,008,375.92 is: 16,571,624.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,046.22 : 28,573,077.54 = 12,008,375.92 : x
  2. Step 2: Convert to fraction form
    20,705,046.22/28,573,077.54 = 12,008,375.92/x
  3. Step 3: Cross multiply
    20,705,046.22x = 28,573,077.54 × 12,008,375.92
  4. Step 4: Simplify right side
    20,705,046.22x = 343,116,256,291,628.81
  5. Step 5: Solve for x
    x = 343,116,256,291,628.81/20,705,046.22
  6. Step 6: Final answer
    x = 16,571,624.75

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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.