Home / 18,821,806.20-28,232,126.10-5,358,634.20

Finding the Fourth Proportional to 18,821,806.20, 28,232,126.10 and 5,358,634.20

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Solution

The fourth proportional to 18,821,806.20, 28,232,126.10 and 5,358,634.20 is: 8,037,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821,806.20 : 28,232,126.10 = 5,358,634.20 : x
  2. Step 2: Convert to fraction form
    18,821,806.20/28,232,126.10 = 5,358,634.20/x
  3. Step 3: Cross multiply
    18,821,806.20x = 28,232,126.10 × 5,358,634.20
  4. Step 4: Simplify right side
    18,821,806.20x = 151,285,636,458,172.62
  5. Step 5: Solve for x
    x = 151,285,636,458,172.62/18,821,806.20
  6. Step 6: Final answer
    x = 8,037,785.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.