Home / 2,812,006.60-4,218,009.90-1,855,412.80

Finding the Fourth Proportional to 2,812,006.60, 4,218,009.90 and 1,855,412.80

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Solution

The fourth proportional to 2,812,006.60, 4,218,009.90 and 1,855,412.80 is: 2,783,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812,006.60 : 4,218,009.90 = 1,855,412.80 : x
  2. Step 2: Convert to fraction form
    2,812,006.60/4,218,009.90 = 1,855,412.80/x
  3. Step 3: Cross multiply
    2,812,006.60x = 4,218,009.90 × 1,855,412.80
  4. Step 4: Simplify right side
    2,812,006.60x = 7,826,149,558,986.72
  5. Step 5: Solve for x
    x = 7,826,149,558,986.72/2,812,006.60
  6. Step 6: Final answer
    x = 2,783,119.20

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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.