Home / 13,395,865.36-20,068,443.87-7,914,568.12

Finding the Fourth Proportional to 13,395,865.36, 20,068,443.87 and 7,914,568.12

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Solution

The fourth proportional to 13,395,865.36, 20,068,443.87 and 7,914,568.12 is: 11,856,872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395,865.36 : 20,068,443.87 = 7,914,568.12 : x
  2. Step 2: Convert to fraction form
    13,395,865.36/20,068,443.87 = 7,914,568.12/x
  3. Step 3: Cross multiply
    13,395,865.36x = 20,068,443.87 × 7,914,568.12
  4. Step 4: Simplify right side
    13,395,865.36x = 158,833,066,021,340.31
  5. Step 5: Solve for x
    x = 158,833,066,021,340.31/13,395,865.36
  6. Step 6: Final answer
    x = 11,856,872.38

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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.