Home / 20,414,986.20-30,622,479.30-17,643,619.80

Finding the Fourth Proportional to 20,414,986.20, 30,622,479.30 and 17,643,619.80

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Solution

The fourth proportional to 20,414,986.20, 30,622,479.30 and 17,643,619.80 is: 26,465,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,986.20 : 30,622,479.30 = 17,643,619.80 : x
  2. Step 2: Convert to fraction form
    20,414,986.20/30,622,479.30 = 17,643,619.80/x
  3. Step 3: Cross multiply
    20,414,986.20x = 30,622,479.30 × 17,643,619.80
  4. Step 4: Simplify right side
    20,414,986.20x = 540,291,382,102,570.19
  5. Step 5: Solve for x
    x = 540,291,382,102,570.19/20,414,986.20
  6. Step 6: Final answer
    x = 26,465,429.70

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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.