Home / 13,689,327-20,554,176.52-7,635,885.96

Finding the Fourth Proportional to 13,689,327, 20,554,176.52 and 7,635,885.96

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Solution

The fourth proportional to 13,689,327, 20,554,176.52 and 7,635,885.96 is: 11,465,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,327 : 20,554,176.52 = 7,635,885.96 : x
  2. Step 2: Convert to fraction form
    13,689,327/20,554,176.52 = 7,635,885.96/x
  3. Step 3: Cross multiply
    13,689,327x = 20,554,176.52 × 7,635,885.96
  4. Step 4: Simplify right side
    13,689,327x = 156,949,347,908,429.66
  5. Step 5: Solve for x
    x = 156,949,347,908,429.66/13,689,327
  6. Step 6: Final answer
    x = 11,465,088.67

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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.