Home / 20,836,190.52-28,748,749.23-12,018,337.74

Finding the Fourth Proportional to 20,836,190.52, 28,748,749.23 and 12,018,337.74

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Solution

The fourth proportional to 20,836,190.52, 28,748,749.23 and 12,018,337.74 is: 16,582,310.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,190.52 : 28,748,749.23 = 12,018,337.74 : x
  2. Step 2: Convert to fraction form
    20,836,190.52/28,748,749.23 = 12,018,337.74/x
  3. Step 3: Cross multiply
    20,836,190.52x = 28,748,749.23 × 12,018,337.74
  4. Step 4: Simplify right side
    20,836,190.52x = 345,512,177,848,704.94
  5. Step 5: Solve for x
    x = 345,512,177,848,704.94/20,836,190.52
  6. Step 6: Final answer
    x = 16,582,310.36

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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.