Home / 20,588,889.92-28,412,404.09-11,169,542.48

Finding the Fourth Proportional to 20,588,889.92, 28,412,404.09 and 11,169,542.48

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Solution

The fourth proportional to 20,588,889.92, 28,412,404.09 and 11,169,542.48 is: 15,413,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588,889.92 : 28,412,404.09 = 11,169,542.48 : x
  2. Step 2: Convert to fraction form
    20,588,889.92/28,412,404.09 = 11,169,542.48/x
  3. Step 3: Cross multiply
    20,588,889.92x = 28,412,404.09 × 11,169,542.48
  4. Step 4: Simplify right side
    20,588,889.92x = 317,353,554,272,194.81
  5. Step 5: Solve for x
    x = 317,353,554,272,194.81/20,588,889.92
  6. Step 6: Final answer
    x = 15,413,825.40

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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.