Home / 13,287,233.80-19,930,850.70-12,111,502.60

Finding the Fourth Proportional to 13,287,233.80, 19,930,850.70 and 12,111,502.60

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Solution

The fourth proportional to 13,287,233.80, 19,930,850.70 and 12,111,502.60 is: 18,167,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,233.80 : 19,930,850.70 = 12,111,502.60 : x
  2. Step 2: Convert to fraction form
    13,287,233.80/19,930,850.70 = 12,111,502.60/x
  3. Step 3: Cross multiply
    13,287,233.80x = 19,930,850.70 × 12,111,502.60
  4. Step 4: Simplify right side
    13,287,233.80x = 241,392,550,073,261.81
  5. Step 5: Solve for x
    x = 241,392,550,073,261.81/13,287,233.80
  6. Step 6: Final answer
    x = 18,167,253.90

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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.