Home / 31,321,685.51-43,229,124.48-18,268,944.42

Finding the Fourth Proportional to 31,321,685.51, 43,229,124.48 and 18,268,944.42

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Solution

The fourth proportional to 31,321,685.51, 43,229,124.48 and 18,268,944.42 is: 25,214,175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,321,685.51 : 43,229,124.48 = 18,268,944.42 : x
  2. Step 2: Convert to fraction form
    31,321,685.51/43,229,124.48 = 18,268,944.42/x
  3. Step 3: Cross multiply
    31,321,685.51x = 43,229,124.48 × 18,268,944.42
  4. Step 4: Simplify right side
    31,321,685.51x = 789,750,472,450,381.38
  5. Step 5: Solve for x
    x = 789,750,472,450,381.38/31,321,685.51
  6. Step 6: Final answer
    x = 25,214,175.41

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1.5x scale

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.