Home / 2,798,139.40-4,197,209.10-2,189,278.60

Finding the Fourth Proportional to 2,798,139.40, 4,197,209.10 and 2,189,278.60

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Solution

The fourth proportional to 2,798,139.40, 4,197,209.10 and 2,189,278.60 is: 3,283,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,139.40 : 4,197,209.10 = 2,189,278.60 : x
  2. Step 2: Convert to fraction form
    2,798,139.40/4,197,209.10 = 2,189,278.60/x
  3. Step 3: Cross multiply
    2,798,139.40x = 4,197,209.10 × 2,189,278.60
  4. Step 4: Simplify right side
    2,798,139.40x = 9,188,860,062,355.26
  5. Step 5: Solve for x
    x = 9,188,860,062,355.26/2,798,139.40
  6. Step 6: Final answer
    x = 3,283,917.90

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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.