Home / 2,781,045.20-4,177,788.60-2,667,688.40

Finding the Fourth Proportional to 2,781,045.20, 4,177,788.60 and 2,667,688.40

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Solution

The fourth proportional to 2,781,045.20, 4,177,788.60 and 2,667,688.40 is: 4,007,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,045.20 : 4,177,788.60 = 2,667,688.40 : x
  2. Step 2: Convert to fraction form
    2,781,045.20/4,177,788.60 = 2,667,688.40/x
  3. Step 3: Cross multiply
    2,781,045.20x = 4,177,788.60 × 2,667,688.40
  4. Step 4: Simplify right side
    2,781,045.20x = 11,145,038,185,872.24
  5. Step 5: Solve for x
    x = 11,145,038,185,872.24/2,781,045.20
  6. Step 6: Final answer
    x = 4,007,499.84

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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.