Home / 13,428,191.36-20,127,945.54-7,658,503.56

Finding the Fourth Proportional to 13,428,191.36, 20,127,945.54 and 7,658,503.56

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Solution

The fourth proportional to 13,428,191.36, 20,127,945.54 and 7,658,503.56 is: 11,479,575.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428,191.36 : 20,127,945.54 = 7,658,503.56 : x
  2. Step 2: Convert to fraction form
    13,428,191.36/20,127,945.54 = 7,658,503.56/x
  3. Step 3: Cross multiply
    13,428,191.36x = 20,127,945.54 × 7,658,503.56
  4. Step 4: Simplify right side
    13,428,191.36x = 154,149,942,573,576.09
  5. Step 5: Solve for x
    x = 154,149,942,573,576.09/13,428,191.36
  6. Step 6: Final answer
    x = 11,479,575.95

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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.