Home / 12,254,778.87-18,373,655.40-5,427,631.90

Finding the Fourth Proportional to 12,254,778.87, 18,373,655.40 and 5,427,631.90

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Solution

The fourth proportional to 12,254,778.87, 18,373,655.40 and 5,427,631.90 is: 8,137,677.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254,778.87 : 18,373,655.40 = 5,427,631.90 : x
  2. Step 2: Convert to fraction form
    12,254,778.87/18,373,655.40 = 5,427,631.90/x
  3. Step 3: Cross multiply
    12,254,778.87x = 18,373,655.40 × 5,427,631.90
  4. Step 4: Simplify right side
    12,254,778.87x = 99,725,438,201,796.56
  5. Step 5: Solve for x
    x = 99,725,438,201,796.56/12,254,778.87
  6. Step 6: Final answer
    x = 8,137,677.50

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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.