Home / 12,451,441.13-18,638,854.67-8,124,173.72

Finding the Fourth Proportional to 12,451,441.13, 18,638,854.67 and 8,124,173.72

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Solution

The fourth proportional to 12,451,441.13, 18,638,854.67 and 8,124,173.72 is: 12,161,266.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,441.13 : 18,638,854.67 = 8,124,173.72 : x
  2. Step 2: Convert to fraction form
    12,451,441.13/18,638,854.67 = 8,124,173.72/x
  3. Step 3: Cross multiply
    12,451,441.13x = 18,638,854.67 × 8,124,173.72
  4. Step 4: Simplify right side
    12,451,441.13x = 151,425,293,179,803.03
  5. Step 5: Solve for x
    x = 151,425,293,179,803.03/12,451,441.13
  6. Step 6: Final answer
    x = 12,161,266.44

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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.