Home / 19,668,287.20-27,140,250-10,965,642.88

Finding the Fourth Proportional to 19,668,287.20, 27,140,250 and 10,965,642.88

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Solution

The fourth proportional to 19,668,287.20, 27,140,250 and 10,965,642.88 is: 15,131,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668,287.20 : 27,140,250 = 10,965,642.88 : x
  2. Step 2: Convert to fraction form
    19,668,287.20/27,140,250 = 10,965,642.88/x
  3. Step 3: Cross multiply
    19,668,287.20x = 27,140,250 × 10,965,642.88
  4. Step 4: Simplify right side
    19,668,287.20x = 297,610,289,173,920
  5. Step 5: Solve for x
    x = 297,610,289,173,920/19,668,287.20
  6. Step 6: Final answer
    x = 15,131,479.73

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1.5x scale

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.