Home / 20,439,166.32-30,646,400.61-8,145,020.97

Finding the Fourth Proportional to 20,439,166.32, 30,646,400.61 and 8,145,020.97

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Solution

The fourth proportional to 20,439,166.32, 30,646,400.61 and 8,145,020.97 is: 12,212,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,166.32 : 30,646,400.61 = 8,145,020.97 : x
  2. Step 2: Convert to fraction form
    20,439,166.32/30,646,400.61 = 8,145,020.97/x
  3. Step 3: Cross multiply
    20,439,166.32x = 30,646,400.61 × 8,145,020.97
  4. Step 4: Simplify right side
    20,439,166.32x = 249,615,575,623,470.78
  5. Step 5: Solve for x
    x = 249,615,575,623,470.78/20,439,166.32
  6. Step 6: Final answer
    x = 12,212,610.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.