Home / 4,920,119.20-7,381,215.60-2,078,768.80

Finding the Fourth Proportional to 4,920,119.20, 7,381,215.60 and 2,078,768.80

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Solution

The fourth proportional to 4,920,119.20, 7,381,215.60 and 2,078,768.80 is: 3,118,591.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,119.20 : 7,381,215.60 = 2,078,768.80 : x
  2. Step 2: Convert to fraction form
    4,920,119.20/7,381,215.60 = 2,078,768.80/x
  3. Step 3: Cross multiply
    4,920,119.20x = 7,381,215.60 × 2,078,768.80
  4. Step 4: Simplify right side
    4,920,119.20x = 15,343,840,695,353.28
  5. Step 5: Solve for x
    x = 15,343,840,695,353.28/4,920,119.20
  6. Step 6: Final answer
    x = 3,118,591.25

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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.