Home / 13,689,397-20,554,281.24-7,635,955.96

Finding the Fourth Proportional to 13,689,397, 20,554,281.24 and 7,635,955.96

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Solution

The fourth proportional to 13,689,397, 20,554,281.24 and 7,635,955.96 is: 11,465,193.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,397 : 20,554,281.24 = 7,635,955.96 : x
  2. Step 2: Convert to fraction form
    13,689,397/20,554,281.24 = 7,635,955.96/x
  3. Step 3: Cross multiply
    13,689,397x = 20,554,281.24 × 7,635,955.96
  4. Step 4: Simplify right side
    13,689,397x = 156,951,586,338,094.19
  5. Step 5: Solve for x
    x = 156,951,586,338,094.19/13,689,397
  6. Step 6: Final answer
    x = 11,465,193.56

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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.