Home / 2,986,481.60-4,479,722.40-1,638,123.20

Finding the Fourth Proportional to 2,986,481.60, 4,479,722.40 and 1,638,123.20

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Solution

The fourth proportional to 2,986,481.60, 4,479,722.40 and 1,638,123.20 is: 2,457,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,481.60 : 4,479,722.40 = 1,638,123.20 : x
  2. Step 2: Convert to fraction form
    2,986,481.60/4,479,722.40 = 1,638,123.20/x
  3. Step 3: Cross multiply
    2,986,481.60x = 4,479,722.40 × 1,638,123.20
  4. Step 4: Simplify right side
    2,986,481.60x = 7,338,337,192,999.68
  5. Step 5: Solve for x
    x = 7,338,337,192,999.68/2,986,481.60
  6. Step 6: Final answer
    x = 2,457,184.80

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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.