Home / 12,321,797.54-18,478,765.71-4,232,822.72

Finding the Fourth Proportional to 12,321,797.54, 18,478,765.71 and 4,232,822.72

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Solution

The fourth proportional to 12,321,797.54, 18,478,765.71 and 4,232,822.72 is: 6,347,883.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321,797.54 : 18,478,765.71 = 4,232,822.72 : x
  2. Step 2: Convert to fraction form
    12,321,797.54/18,478,765.71 = 4,232,822.72/x
  3. Step 3: Cross multiply
    12,321,797.54x = 18,478,765.71 × 4,232,822.72
  4. Step 4: Simplify right side
    12,321,797.54x = 78,217,339,242,451.11
  5. Step 5: Solve for x
    x = 78,217,339,242,451.11/12,321,797.54
  6. Step 6: Final answer
    x = 6,347,883.82

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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.