Home / 12,687,857,311.46-17,508,216,576.06-7,335,761,058.68

Finding the Fourth Proportional to 12,687,857,311.46, 17,508,216,576.06 and 7,335,761,058.68

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Solution

The fourth proportional to 12,687,857,311.46, 17,508,216,576.06 and 7,335,761,058.68 is: 10,122,756,759.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,857,311.46 : 17,508,216,576.06 = 7,335,761,058.68 : x
  2. Step 2: Convert to fraction form
    12,687,857,311.46/17,508,216,576.06 = 7,335,761,058.68/x
  3. Step 3: Cross multiply
    12,687,857,311.46x = 17,508,216,576.06 × 7,335,761,058.68
  4. Step 4: Simplify right side
    12,687,857,311.46x = 128,436,093,365,509,095,424
  5. Step 5: Solve for x
    x = 128,436,093,365,509,095,424/12,687,857,311.46
  6. Step 6: Final answer
    x = 10,122,756,759.69

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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.