Home / 4,920,118.20-7,381,214.10-2,078,767.80

Finding the Fourth Proportional to 4,920,118.20, 7,381,214.10 and 2,078,767.80

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Solution

The fourth proportional to 4,920,118.20, 7,381,214.10 and 2,078,767.80 is: 3,118,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,118.20 : 7,381,214.10 = 2,078,767.80 : x
  2. Step 2: Convert to fraction form
    4,920,118.20/7,381,214.10 = 2,078,767.80/x
  3. Step 3: Cross multiply
    4,920,118.20x = 7,381,214.10 × 2,078,767.80
  4. Step 4: Simplify right side
    4,920,118.20x = 15,343,830,195,985.98
  5. Step 5: Solve for x
    x = 15,343,830,195,985.98/4,920,118.20
  6. Step 6: Final answer
    x = 3,118,589.75

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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.