Home / 20,342,293.88-28,072,871.84-11,049,861.29

Finding the Fourth Proportional to 20,342,293.88, 28,072,871.84 and 11,049,861.29

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Solution

The fourth proportional to 20,342,293.88, 28,072,871.84 and 11,049,861.29 is: 15,249,083.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342,293.88 : 28,072,871.84 = 11,049,861.29 : x
  2. Step 2: Convert to fraction form
    20,342,293.88/28,072,871.84 = 11,049,861.29/x
  3. Step 3: Cross multiply
    20,342,293.88x = 28,072,871.84 × 11,049,861.29
  4. Step 4: Simplify right side
    20,342,293.88x = 310,201,339,731,207.38
  5. Step 5: Solve for x
    x = 310,201,339,731,207.38/20,342,293.88
  6. Step 6: Final answer
    x = 15,249,083.59

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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.