Home / 55,031,669.38-82,555,475.64-20,485,199.62

Finding the Fourth Proportional to 55,031,669.38, 82,555,475.64 and 20,485,199.62

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Solution

The fourth proportional to 55,031,669.38, 82,555,475.64 and 20,485,199.62 is: 30,730,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,031,669.38 : 82,555,475.64 = 20,485,199.62 : x
  2. Step 2: Convert to fraction form
    55,031,669.38/82,555,475.64 = 20,485,199.62/x
  3. Step 3: Cross multiply
    55,031,669.38x = 82,555,475.64 × 20,485,199.62
  4. Step 4: Simplify right side
    55,031,669.38x = 1,691,165,398,209,447.25
  5. Step 5: Solve for x
    x = 1,691,165,398,209,447.25/55,031,669.38
  6. Step 6: Final answer
    x = 30,730,766.80

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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.