Home / 28,547,961.49-39,395,131-15,494,942.71

Finding the Fourth Proportional to 28,547,961.49, 39,395,131 and 15,494,942.71

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Solution

The fourth proportional to 28,547,961.49, 39,395,131 and 15,494,942.71 is: 21,382,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547,961.49 : 39,395,131 = 15,494,942.71 : x
  2. Step 2: Convert to fraction form
    28,547,961.49/39,395,131 = 15,494,942.71/x
  3. Step 3: Cross multiply
    28,547,961.49x = 39,395,131 × 15,494,942.71
  4. Step 4: Simplify right side
    28,547,961.49x = 610,425,297,897,945
  5. Step 5: Solve for x
    x = 610,425,297,897,945/28,547,961.49
  6. Step 6: Final answer
    x = 21,382,447.85

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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.