Home / 2,129,803.20-3,193,538.40-866,203.20

Finding the Fourth Proportional to 2,129,803.20, 3,193,538.40 and 866,203.20

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Solution

The fourth proportional to 2,129,803.20, 3,193,538.40 and 866,203.20 is: 1,298,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,803.20 : 3,193,538.40 = 866,203.20 : x
  2. Step 2: Convert to fraction form
    2,129,803.20/3,193,538.40 = 866,203.20/x
  3. Step 3: Cross multiply
    2,129,803.20x = 3,193,538.40 × 866,203.20
  4. Step 4: Simplify right side
    2,129,803.20x = 2,766,253,181,402.88
  5. Step 5: Solve for x
    x = 2,766,253,181,402.88/2,129,803.20
  6. Step 6: Final answer
    x = 1,298,830.42

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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.