Home / 20,543,946.38-28,350,620.43-11,376,578.06

Finding the Fourth Proportional to 20,543,946.38, 28,350,620.43 and 11,376,578.06

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Solution

The fourth proportional to 20,543,946.38, 28,350,620.43 and 11,376,578.06 is: 15,699,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543,946.38 : 28,350,620.43 = 11,376,578.06 : x
  2. Step 2: Convert to fraction form
    20,543,946.38/28,350,620.43 = 11,376,578.06/x
  3. Step 3: Cross multiply
    20,543,946.38x = 28,350,620.43 × 11,376,578.06
  4. Step 4: Simplify right side
    20,543,946.38x = 322,533,046,371,325.75
  5. Step 5: Solve for x
    x = 322,533,046,371,325.75/20,543,946.38
  6. Step 6: Final answer
    x = 15,699,663.56

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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.