Home / 20,970,339.28-28,924,161.11-13,997,501.26

Finding the Fourth Proportional to 20,970,339.28, 28,924,161.11 and 13,997,501.26

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Solution

The fourth proportional to 20,970,339.28, 28,924,161.11 and 13,997,501.26 is: 19,306,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,339.28 : 28,924,161.11 = 13,997,501.26 : x
  2. Step 2: Convert to fraction form
    20,970,339.28/28,924,161.11 = 13,997,501.26/x
  3. Step 3: Cross multiply
    20,970,339.28x = 28,924,161.11 × 13,997,501.26
  4. Step 4: Simplify right side
    20,970,339.28x = 404,865,981,439,370.12
  5. Step 5: Solve for x
    x = 404,865,981,439,370.12/20,970,339.28
  6. Step 6: Final answer
    x = 19,306,601.39

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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.