Home / 28,458,965.05-39,273,363.49-15,406,214.38

Finding the Fourth Proportional to 28,458,965.05, 39,273,363.49 and 15,406,214.38

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Solution

The fourth proportional to 28,458,965.05, 39,273,363.49 and 15,406,214.38 is: 21,260,571.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458,965.05 : 39,273,363.49 = 15,406,214.38 : x
  2. Step 2: Convert to fraction form
    28,458,965.05/39,273,363.49 = 15,406,214.38/x
  3. Step 3: Cross multiply
    28,458,965.05x = 39,273,363.49 × 15,406,214.38
  4. Step 4: Simplify right side
    28,458,965.05x = 605,053,857,350,605
  5. Step 5: Solve for x
    x = 605,053,857,350,605/28,458,965.05
  6. Step 6: Final answer
    x = 21,260,571.36

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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.