Home / 15,857,847-21,881,972.34-9,330,040.80

Finding the Fourth Proportional to 15,857,847, 21,881,972.34 and 9,330,040.80

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Solution

The fourth proportional to 15,857,847, 21,881,972.34 and 9,330,040.80 is: 12,874,364.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857,847 : 21,881,972.34 = 9,330,040.80 : x
  2. Step 2: Convert to fraction form
    15,857,847/21,881,972.34 = 9,330,040.80/x
  3. Step 3: Cross multiply
    15,857,847x = 21,881,972.34 × 9,330,040.80
  4. Step 4: Simplify right side
    15,857,847x = 204,159,694,716,671.50
  5. Step 5: Solve for x
    x = 204,159,694,716,671.50/15,857,847
  6. Step 6: Final answer
    x = 12,874,364.01

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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.