Home / 55,102,891.20-82,685,829.60-21,048,676.80

Finding the Fourth Proportional to 55,102,891.20, 82,685,829.60 and 21,048,676.80

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Solution

The fourth proportional to 55,102,891.20, 82,685,829.60 and 21,048,676.80 is: 31,585,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,102,891.20 : 82,685,829.60 = 21,048,676.80 : x
  2. Step 2: Convert to fraction form
    55,102,891.20/82,685,829.60 = 21,048,676.80/x
  3. Step 3: Cross multiply
    55,102,891.20x = 82,685,829.60 × 21,048,676.80
  4. Step 4: Simplify right side
    55,102,891.20x = 1,740,427,303,190,273.25
  5. Step 5: Solve for x
    x = 1,740,427,303,190,273.25/55,102,891.20
  6. Step 6: Final answer
    x = 31,585,045.09

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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.