Home / 2,208,830.60-3,313,245.90-1,991,880.20

Finding the Fourth Proportional to 2,208,830.60, 3,313,245.90 and 1,991,880.20

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Solution

The fourth proportional to 2,208,830.60, 3,313,245.90 and 1,991,880.20 is: 2,987,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208,830.60 : 3,313,245.90 = 1,991,880.20 : x
  2. Step 2: Convert to fraction form
    2,208,830.60/3,313,245.90 = 1,991,880.20/x
  3. Step 3: Cross multiply
    2,208,830.60x = 3,313,245.90 × 1,991,880.20
  4. Step 4: Simplify right side
    2,208,830.60x = 6,599,588,905,941.18
  5. Step 5: Solve for x
    x = 6,599,588,905,941.18/2,208,830.60
  6. Step 6: Final answer
    x = 2,987,820.30

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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.