Home / 20,731,579.55-28,609,384.52-11,439,233.63

Finding the Fourth Proportional to 20,731,579.55, 28,609,384.52 and 11,439,233.63

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Solution

The fourth proportional to 20,731,579.55, 28,609,384.52 and 11,439,233.63 is: 15,786,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731,579.55 : 28,609,384.52 = 11,439,233.63 : x
  2. Step 2: Convert to fraction form
    20,731,579.55/28,609,384.52 = 11,439,233.63/x
  3. Step 3: Cross multiply
    20,731,579.55x = 28,609,384.52 × 11,439,233.63
  4. Step 4: Simplify right side
    20,731,579.55x = 327,269,433,477,589.25
  5. Step 5: Solve for x
    x = 327,269,433,477,589.25/20,731,579.55
  6. Step 6: Final answer
    x = 15,786,034.67

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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.