Home / 193,555,315.20-290,332,972.80-86,059,891.20

Finding the Fourth Proportional to 193,555,315.20, 290,332,972.80 and 86,059,891.20

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Solution

The fourth proportional to 193,555,315.20, 290,332,972.80 and 86,059,891.20 is: 129,089,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,555,315.20 : 290,332,972.80 = 86,059,891.20 : x
  2. Step 2: Convert to fraction form
    193,555,315.20/290,332,972.80 = 86,059,891.20/x
  3. Step 3: Cross multiply
    193,555,315.20x = 290,332,972.80 × 86,059,891.20
  4. Step 4: Simplify right side
    193,555,315.20x = 24,986,024,050,940,560
  5. Step 5: Solve for x
    x = 24,986,024,050,940,560/193,555,315.20
  6. Step 6: Final answer
    x = 129,089,836.80

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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.