Home / 3,118,563.60-4,677,845.40-1,921,837.20

Finding the Fourth Proportional to 3,118,563.60, 4,677,845.40 and 1,921,837.20

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Solution

The fourth proportional to 3,118,563.60, 4,677,845.40 and 1,921,837.20 is: 2,882,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,563.60 : 4,677,845.40 = 1,921,837.20 : x
  2. Step 2: Convert to fraction form
    3,118,563.60/4,677,845.40 = 1,921,837.20/x
  3. Step 3: Cross multiply
    3,118,563.60x = 4,677,845.40 × 1,921,837.20
  4. Step 4: Simplify right side
    3,118,563.60x = 8,990,057,305,568.88
  5. Step 5: Solve for x
    x = 8,990,057,305,568.88/3,118,563.60
  6. Step 6: Final answer
    x = 2,882,755.80

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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.