Home / 66,087,071.96-91,202,620.60-39,629,733.28

Finding the Fourth Proportional to 66,087,071.96, 91,202,620.60 and 39,629,733.28

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Solution

The fourth proportional to 66,087,071.96, 91,202,620.60 and 39,629,733.28 is: 54,690,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087,071.96 : 91,202,620.60 = 39,629,733.28 : x
  2. Step 2: Convert to fraction form
    66,087,071.96/91,202,620.60 = 39,629,733.28/x
  3. Step 3: Cross multiply
    66,087,071.96x = 91,202,620.60 × 39,629,733.28
  4. Step 4: Simplify right side
    66,087,071.96x = 3,614,335,528,815,033.50
  5. Step 5: Solve for x
    x = 3,614,335,528,815,033.50/66,087,071.96
  6. Step 6: Final answer
    x = 54,690,507.87

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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.