Home / 12,097,201.20-18,145,801.80-5,378,737.20

Finding the Fourth Proportional to 12,097,201.20, 18,145,801.80 and 5,378,737.20

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Solution

The fourth proportional to 12,097,201.20, 18,145,801.80 and 5,378,737.20 is: 8,068,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,201.20 : 18,145,801.80 = 5,378,737.20 : x
  2. Step 2: Convert to fraction form
    12,097,201.20/18,145,801.80 = 5,378,737.20/x
  3. Step 3: Cross multiply
    12,097,201.20x = 18,145,801.80 × 5,378,737.20
  4. Step 4: Simplify right side
    12,097,201.20x = 97,601,499,165,486.97
  5. Step 5: Solve for x
    x = 97,601,499,165,486.97/12,097,201.20
  6. Step 6: Final answer
    x = 8,068,105.80

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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.