Home / 39,629,595.51-54,691,837.07-21,991,836.87

Finding the Fourth Proportional to 39,629,595.51, 54,691,837.07 and 21,991,836.87

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Solution

The fourth proportional to 39,629,595.51, 54,691,837.07 and 21,991,836.87 is: 30,350,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,629,595.51 : 54,691,837.07 = 21,991,836.87 : x
  2. Step 2: Convert to fraction form
    39,629,595.51/54,691,837.07 = 21,991,836.87/x
  3. Step 3: Cross multiply
    39,629,595.51x = 54,691,837.07 × 21,991,836.87
  4. Step 4: Simplify right side
    39,629,595.51x = 1,202,773,958,854,099.50
  5. Step 5: Solve for x
    x = 1,202,773,958,854,099.50/39,629,595.51
  6. Step 6: Final answer
    x = 30,350,397.05

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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.