Home / 13,395,956.92-20,068,581.15-7,914,659.78

Finding the Fourth Proportional to 13,395,956.92, 20,068,581.15 and 7,914,659.78

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Solution

The fourth proportional to 13,395,956.92, 20,068,581.15 and 7,914,659.78 is: 11,857,009.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395,956.92 : 20,068,581.15 = 7,914,659.78 : x
  2. Step 2: Convert to fraction form
    13,395,956.92/20,068,581.15 = 7,914,659.78/x
  3. Step 3: Cross multiply
    13,395,956.92x = 20,068,581.15 × 7,914,659.78
  4. Step 4: Simplify right side
    13,395,956.92x = 158,835,992,069,571.12
  5. Step 5: Solve for x
    x = 158,835,992,069,571.12/13,395,956.92
  6. Step 6: Final answer
    x = 11,857,009.77

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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.