Home / 12,157,655.12-18,236,505.36-4,969,183.76

Finding the Fourth Proportional to 12,157,655.12, 18,236,505.36 and 4,969,183.76

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Solution

The fourth proportional to 12,157,655.12, 18,236,505.36 and 4,969,183.76 is: 7,453,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157,655.12 : 18,236,505.36 = 4,969,183.76 : x
  2. Step 2: Convert to fraction form
    12,157,655.12/18,236,505.36 = 4,969,183.76/x
  3. Step 3: Cross multiply
    12,157,655.12x = 18,236,505.36 × 4,969,183.76
  4. Step 4: Simplify right side
    12,157,655.12x = 90,620,546,274,064.95
  5. Step 5: Solve for x
    x = 90,620,546,274,064.95/12,157,655.12
  6. Step 6: Final answer
    x = 7,453,784.91

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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.