Home / 20,228,934.90-30,343,402.35-8,100,270.30

Finding the Fourth Proportional to 20,228,934.90, 30,343,402.35 and 8,100,270.30

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Solution

The fourth proportional to 20,228,934.90, 30,343,402.35 and 8,100,270.30 is: 12,150,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228,934.90 : 30,343,402.35 = 8,100,270.30 : x
  2. Step 2: Convert to fraction form
    20,228,934.90/30,343,402.35 = 8,100,270.30/x
  3. Step 3: Cross multiply
    20,228,934.90x = 30,343,402.35 × 8,100,270.30
  4. Step 4: Simplify right side
    20,228,934.90x = 245,789,760,856,655.22
  5. Step 5: Solve for x
    x = 245,789,760,856,655.22/20,228,934.90
  6. Step 6: Final answer
    x = 12,150,405.45

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Double scale
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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.