Home / 10,426,555,786.20-15,639,833,679.30-8,360,313,178.20

Finding the Fourth Proportional to 10,426,555,786.20, 15,639,833,679.30 and 8,360,313,178.20

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Solution

The fourth proportional to 10,426,555,786.20, 15,639,833,679.30 and 8,360,313,178.20 is: 12,540,469,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426,555,786.20 : 15,639,833,679.30 = 8,360,313,178.20 : x
  2. Step 2: Convert to fraction form
    10,426,555,786.20/15,639,833,679.30 = 8,360,313,178.20/x
  3. Step 3: Cross multiply
    10,426,555,786.20x = 15,639,833,679.30 × 8,360,313,178.20
  4. Step 4: Simplify right side
    10,426,555,786.20x = 130,753,907,613,907,976,192
  5. Step 5: Solve for x
    x = 130,753,907,613,907,976,192/10,426,555,786.20
  6. Step 6: Final answer
    x = 12,540,469,767.30

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Double scale
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Similar ratio
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1.5x scale

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.