Home / 5,311,863.40-7,967,795.10-2,119,280.80

Finding the Fourth Proportional to 5,311,863.40, 7,967,795.10 and 2,119,280.80

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Solution

The fourth proportional to 5,311,863.40, 7,967,795.10 and 2,119,280.80 is: 3,178,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311,863.40 : 7,967,795.10 = 2,119,280.80 : x
  2. Step 2: Convert to fraction form
    5,311,863.40/7,967,795.10 = 2,119,280.80/x
  3. Step 3: Cross multiply
    5,311,863.40x = 7,967,795.10 × 2,119,280.80
  4. Step 4: Simplify right side
    5,311,863.40x = 16,885,995,173,764.08
  5. Step 5: Solve for x
    x = 16,885,995,173,764.08/5,311,863.40
  6. Step 6: Final answer
    x = 3,178,921.20

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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.