Home / 12,919,912.96-17,829,883.64-7,414,294.92

Finding the Fourth Proportional to 12,919,912.96, 17,829,883.64 and 7,414,294.92

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Solution

The fourth proportional to 12,919,912.96, 17,829,883.64 and 7,414,294.92 is: 10,231,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,912.96 : 17,829,883.64 = 7,414,294.92 : x
  2. Step 2: Convert to fraction form
    12,919,912.96/17,829,883.64 = 7,414,294.92/x
  3. Step 3: Cross multiply
    12,919,912.96x = 17,829,883.64 × 7,414,294.92
  4. Step 4: Simplify right side
    12,919,912.96x = 132,196,015,696,243.11
  5. Step 5: Solve for x
    x = 132,196,015,696,243.11/12,919,912.96
  6. Step 6: Final answer
    x = 10,231,958.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.