Home / 7,135,389.20-10,688,568.60-4,431,414.80

Finding the Fourth Proportional to 7,135,389.20, 10,688,568.60 and 4,431,414.80

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Solution

The fourth proportional to 7,135,389.20, 10,688,568.60 and 4,431,414.80 is: 6,638,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135,389.20 : 10,688,568.60 = 4,431,414.80 : x
  2. Step 2: Convert to fraction form
    7,135,389.20/10,688,568.60 = 4,431,414.80/x
  3. Step 3: Cross multiply
    7,135,389.20x = 10,688,568.60 × 4,431,414.80
  4. Step 4: Simplify right side
    7,135,389.20x = 47,365,481,084,855.27
  5. Step 5: Solve for x
    x = 47,365,481,084,855.27/7,135,389.20
  6. Step 6: Final answer
    x = 6,638,107.57

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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.