Home / 55,193,979.60-82,790,969.40-16,855,432.20

Finding the Fourth Proportional to 55,193,979.60, 82,790,969.40 and 16,855,432.20

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Solution

The fourth proportional to 55,193,979.60, 82,790,969.40 and 16,855,432.20 is: 25,283,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,193,979.60 : 82,790,969.40 = 16,855,432.20 : x
  2. Step 2: Convert to fraction form
    55,193,979.60/82,790,969.40 = 16,855,432.20/x
  3. Step 3: Cross multiply
    55,193,979.60x = 82,790,969.40 × 16,855,432.20
  4. Step 4: Simplify right side
    55,193,979.60x = 1,395,477,571,493,974.75
  5. Step 5: Solve for x
    x = 1,395,477,571,493,974.75/55,193,979.60
  6. Step 6: Final answer
    x = 25,283,148.30

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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.