Home / 20,415,028.80-30,622,543.20-18,182,976.60

Finding the Fourth Proportional to 20,415,028.80, 30,622,543.20 and 18,182,976.60

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Solution

The fourth proportional to 20,415,028.80, 30,622,543.20 and 18,182,976.60 is: 27,274,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,028.80 : 30,622,543.20 = 18,182,976.60 : x
  2. Step 2: Convert to fraction form
    20,415,028.80/30,622,543.20 = 18,182,976.60/x
  3. Step 3: Cross multiply
    20,415,028.80x = 30,622,543.20 × 18,182,976.60
  4. Step 4: Simplify right side
    20,415,028.80x = 556,808,986,438,089.12
  5. Step 5: Solve for x
    x = 556,808,986,438,089.12/20,415,028.80
  6. Step 6: Final answer
    x = 27,274,464.90

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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.