Home / 20,282,301.05-27,989,600.05-10,989,863.78

Finding the Fourth Proportional to 20,282,301.05, 27,989,600.05 and 10,989,863.78

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Solution

The fourth proportional to 20,282,301.05, 27,989,600.05 and 10,989,863.78 is: 15,166,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282,301.05 : 27,989,600.05 = 10,989,863.78 : x
  2. Step 2: Convert to fraction form
    20,282,301.05/27,989,600.05 = 10,989,863.78/x
  3. Step 3: Cross multiply
    20,282,301.05x = 27,989,600.05 × 10,989,863.78
  4. Step 4: Simplify right side
    20,282,301.05x = 307,601,891,806,181.19
  5. Step 5: Solve for x
    x = 307,601,891,806,181.19/20,282,301.05
  6. Step 6: Final answer
    x = 15,166,025.35

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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.