Home / 2,920,102.60-4,378,253.10-2,621,504.20

Finding the Fourth Proportional to 2,920,102.60, 4,378,253.10 and 2,621,504.20

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Solution

The fourth proportional to 2,920,102.60, 4,378,253.10 and 2,621,504.20 is: 3,930,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920,102.60 : 4,378,253.10 = 2,621,504.20 : x
  2. Step 2: Convert to fraction form
    2,920,102.60/4,378,253.10 = 2,621,504.20/x
  3. Step 3: Cross multiply
    2,920,102.60x = 4,378,253.10 × 2,621,504.20
  4. Step 4: Simplify right side
    2,920,102.60x = 11,477,608,890,313.02
  5. Step 5: Solve for x
    x = 11,477,608,890,313.02/2,920,102.60
  6. Step 6: Final answer
    x = 3,930,549.87

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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.