Home / 20,731,577.55-28,609,381.76-11,439,231.63

Finding the Fourth Proportional to 20,731,577.55, 28,609,381.76 and 11,439,231.63

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Solution

The fourth proportional to 20,731,577.55, 28,609,381.76 and 11,439,231.63 is: 15,786,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,577.55 : 28,609,381.76 = 11,439,231.63 : x
  2. Step 2: Convert to fraction form
    20,731,577.55/28,609,381.76 = 11,439,231.63/x
  3. Step 3: Cross multiply
    20,731,577.55x = 28,609,381.76 × 11,439,231.63
  4. Step 4: Simplify right side
    20,731,577.55x = 327,269,344,686,540.94
  5. Step 5: Solve for x
    x = 327,269,344,686,540.94/20,731,577.55
  6. Step 6: Final answer
    x = 15,786,031.91

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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.