Home / 20,512,228.20-30,771,107.10-7,053,181.80

Finding the Fourth Proportional to 20,512,228.20, 30,771,107.10 and 7,053,181.80

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Solution

The fourth proportional to 20,512,228.20, 30,771,107.10 and 7,053,181.80 is: 10,580,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,228.20 : 30,771,107.10 = 7,053,181.80 : x
  2. Step 2: Convert to fraction form
    20,512,228.20/30,771,107.10 = 7,053,181.80/x
  3. Step 3: Cross multiply
    20,512,228.20x = 30,771,107.10 × 7,053,181.80
  4. Step 4: Simplify right side
    20,512,228.20x = 217,034,212,563,570.78
  5. Step 5: Solve for x
    x = 217,034,212,563,570.78/20,512,228.20
  6. Step 6: Final answer
    x = 10,580,723.38

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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.