Home / 2,808,081.90-4,212,122.85-2,780,088.30

Finding the Fourth Proportional to 2,808,081.90, 4,212,122.85 and 2,780,088.30

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Solution

The fourth proportional to 2,808,081.90, 4,212,122.85 and 2,780,088.30 is: 4,170,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,081.90 : 4,212,122.85 = 2,780,088.30 : x
  2. Step 2: Convert to fraction form
    2,808,081.90/4,212,122.85 = 2,780,088.30/x
  3. Step 3: Cross multiply
    2,808,081.90x = 4,212,122.85 × 2,780,088.30
  4. Step 4: Simplify right side
    2,808,081.90x = 11,710,073,453,447.65
  5. Step 5: Solve for x
    x = 11,710,073,453,447.65/2,808,081.90
  6. Step 6: Final answer
    x = 4,170,132.45

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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.