Home / 2,808,076.40-4,212,114.60-2,780,082.80

Finding the Fourth Proportional to 2,808,076.40, 4,212,114.60 and 2,780,082.80

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Solution

The fourth proportional to 2,808,076.40, 4,212,114.60 and 2,780,082.80 is: 4,170,124.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808,076.40 : 4,212,114.60 = 2,780,082.80 : x
  2. Step 2: Convert to fraction form
    2,808,076.40/4,212,114.60 = 2,780,082.80/x
  3. Step 3: Cross multiply
    2,808,076.40x = 4,212,114.60 × 2,780,082.80
  4. Step 4: Simplify right side
    2,808,076.40x = 11,710,027,351,088.88
  5. Step 5: Solve for x
    x = 11,710,027,351,088.88/2,808,076.40
  6. Step 6: Final answer
    x = 4,170,124.20

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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.