Home / 20,228,891.20-30,343,336.80-20,087,173.60

Finding the Fourth Proportional to 20,228,891.20, 30,343,336.80 and 20,087,173.60

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Solution

The fourth proportional to 20,228,891.20, 30,343,336.80 and 20,087,173.60 is: 30,130,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228,891.20 : 30,343,336.80 = 20,087,173.60 : x
  2. Step 2: Convert to fraction form
    20,228,891.20/30,343,336.80 = 20,087,173.60/x
  3. Step 3: Cross multiply
    20,228,891.20x = 30,343,336.80 × 20,087,173.60
  4. Step 4: Simplify right side
    20,228,891.20x = 609,511,873,904,868.50
  5. Step 5: Solve for x
    x = 609,511,873,904,868.50/20,228,891.20
  6. Step 6: Final answer
    x = 30,130,760.40

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Similar ratio
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1.5x scale

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.