Home / 218,073,505.81-327,113,107.98-72,507,067.24

Finding the Fourth Proportional to 218,073,505.81, 327,113,107.98 and 72,507,067.24

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Solution

The fourth proportional to 218,073,505.81, 327,113,107.98 and 72,507,067.24 is: 108,761,548.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,073,505.81 : 327,113,107.98 = 72,507,067.24 : x
  2. Step 2: Convert to fraction form
    218,073,505.81/327,113,107.98 = 72,507,067.24/x
  3. Step 3: Cross multiply
    218,073,505.81x = 327,113,107.98 × 72,507,067.24
  4. Step 4: Simplify right side
    218,073,505.81x = 23,718,012,115,391,240
  5. Step 5: Solve for x
    x = 23,718,012,115,391,240/218,073,505.81
  6. Step 6: Final answer
    x = 108,761,548.21

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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.