Home / 12,248,453.30-18,372,679.95-8,422,078.10

Finding the Fourth Proportional to 12,248,453.30, 18,372,679.95 and 8,422,078.10

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Solution

The fourth proportional to 12,248,453.30, 18,372,679.95 and 8,422,078.10 is: 12,633,117.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248,453.30 : 18,372,679.95 = 8,422,078.10 : x
  2. Step 2: Convert to fraction form
    12,248,453.30/18,372,679.95 = 8,422,078.10/x
  3. Step 3: Cross multiply
    12,248,453.30x = 18,372,679.95 × 8,422,078.10
  4. Step 4: Simplify right side
    12,248,453.30x = 154,736,145,445,204.09
  5. Step 5: Solve for x
    x = 154,736,145,445,204.09/12,248,453.30
  6. Step 6: Final answer
    x = 12,633,117.15

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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.