Home / 13,145,986.20-19,685,801.70-10,491,778.20

Finding the Fourth Proportional to 13,145,986.20, 19,685,801.70 and 10,491,778.20

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Solution

The fourth proportional to 13,145,986.20, 19,685,801.70 and 10,491,778.20 is: 15,711,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145,986.20 : 19,685,801.70 = 10,491,778.20 : x
  2. Step 2: Convert to fraction form
    13,145,986.20/19,685,801.70 = 10,491,778.20/x
  3. Step 3: Cross multiply
    13,145,986.20x = 19,685,801.70 × 10,491,778.20
  4. Step 4: Simplify right side
    13,145,986.20x = 206,539,065,125,582.91
  5. Step 5: Solve for x
    x = 206,539,065,125,582.91/13,145,986.20
  6. Step 6: Final answer
    x = 15,711,188.34

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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.