Home / 20,434,099.60-28,205,890.60-12,176,752.02

Finding the Fourth Proportional to 20,434,099.60, 28,205,890.60 and 12,176,752.02

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Solution

The fourth proportional to 20,434,099.60, 28,205,890.60 and 12,176,752.02 is: 16,807,989.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,099.60 : 28,205,890.60 = 12,176,752.02 : x
  2. Step 2: Convert to fraction form
    20,434,099.60/28,205,890.60 = 12,176,752.02/x
  3. Step 3: Cross multiply
    20,434,099.60x = 28,205,890.60 × 12,176,752.02
  4. Step 4: Simplify right side
    20,434,099.60x = 343,456,135,339,449
  5. Step 5: Solve for x
    x = 343,456,135,339,449/20,434,099.60
  6. Step 6: Final answer
    x = 16,807,989.69

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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.