Home / 18,989,243.28-28,483,865.26-4,612,214.19

Finding the Fourth Proportional to 18,989,243.28, 28,483,865.26 and 4,612,214.19

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Solution

The fourth proportional to 18,989,243.28, 28,483,865.26 and 4,612,214.19 is: 6,918,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,243.28 : 28,483,865.26 = 4,612,214.19 : x
  2. Step 2: Convert to fraction form
    18,989,243.28/28,483,865.26 = 4,612,214.19/x
  3. Step 3: Cross multiply
    18,989,243.28x = 28,483,865.26 × 4,612,214.19
  4. Step 4: Simplify right side
    18,989,243.28x = 131,373,687,553,393.14
  5. Step 5: Solve for x
    x = 131,373,687,553,393.14/18,989,243.28
  6. Step 6: Final answer
    x = 6,918,321.37

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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.