Home / 12,687,857,311.96-17,508,216,576.75-7,335,761,059.18

Finding the Fourth Proportional to 12,687,857,311.96, 17,508,216,576.75 and 7,335,761,059.18

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Solution

The fourth proportional to 12,687,857,311.96, 17,508,216,576.75 and 7,335,761,059.18 is: 10,122,756,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,857,311.96 : 17,508,216,576.75 = 7,335,761,059.18 : x
  2. Step 2: Convert to fraction form
    12,687,857,311.96/17,508,216,576.75 = 7,335,761,059.18/x
  3. Step 3: Cross multiply
    12,687,857,311.96x = 17,508,216,576.75 × 7,335,761,059.18
  4. Step 4: Simplify right side
    12,687,857,311.96x = 128,436,093,379,324,870,656
  5. Step 5: Solve for x
    x = 128,436,093,379,324,870,656/12,687,857,311.96
  6. Step 6: Final answer
    x = 10,122,756,760.38

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Double scale
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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.