Home / 5,191,427.58-7,164,314.51-2,868,469.78

Finding the Fourth Proportional to 5,191,427.58, 7,164,314.51 and 2,868,469.78

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Solution

The fourth proportional to 5,191,427.58, 7,164,314.51 and 2,868,469.78 is: 3,958,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191,427.58 : 7,164,314.51 = 2,868,469.78 : x
  2. Step 2: Convert to fraction form
    5,191,427.58/7,164,314.51 = 2,868,469.78/x
  3. Step 3: Cross multiply
    5,191,427.58x = 7,164,314.51 × 2,868,469.78
  4. Step 4: Simplify right side
    5,191,427.58x = 20,550,619,649,440.19
  5. Step 5: Solve for x
    x = 20,550,619,649,440.19/5,191,427.58
  6. Step 6: Final answer
    x = 3,958,568.11

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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.