Home / 38,179,570-57,278,321.61-12,620,578.54

Finding the Fourth Proportional to 38,179,570, 57,278,321.61 and 12,620,578.54

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Solution

The fourth proportional to 38,179,570, 57,278,321.61 and 12,620,578.54 is: 18,933,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179,570 : 57,278,321.61 = 12,620,578.54 : x
  2. Step 2: Convert to fraction form
    38,179,570/57,278,321.61 = 12,620,578.54/x
  3. Step 3: Cross multiply
    38,179,570x = 57,278,321.61 × 12,620,578.54
  4. Step 4: Simplify right side
    38,179,570x = 722,885,556,518,384.25
  5. Step 5: Solve for x
    x = 722,885,556,518,384.25/38,179,570
  6. Step 6: Final answer
    x = 18,933,831.80

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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.