Home / 20,536,960.76-28,339,928.08-11,242,749.04

Finding the Fourth Proportional to 20,536,960.76, 28,339,928.08 and 11,242,749.04

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Solution

The fourth proportional to 20,536,960.76, 28,339,928.08 and 11,242,749.04 is: 15,514,403.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536,960.76 : 28,339,928.08 = 11,242,749.04 : x
  2. Step 2: Convert to fraction form
    20,536,960.76/28,339,928.08 = 11,242,749.04/x
  3. Step 3: Cross multiply
    20,536,960.76x = 28,339,928.08 × 11,242,749.04
  4. Step 4: Simplify right side
    20,536,960.76x = 318,618,699,215,089
  5. Step 5: Solve for x
    x = 318,618,699,215,089/20,536,960.76
  6. Step 6: Final answer
    x = 15,514,403.66

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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.