Home / 3,140,809.80-4,711,214.70-2,821,945.20

Finding the Fourth Proportional to 3,140,809.80, 4,711,214.70 and 2,821,945.20

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Solution

The fourth proportional to 3,140,809.80, 4,711,214.70 and 2,821,945.20 is: 4,232,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140,809.80 : 4,711,214.70 = 2,821,945.20 : x
  2. Step 2: Convert to fraction form
    3,140,809.80/4,711,214.70 = 2,821,945.20/x
  3. Step 3: Cross multiply
    3,140,809.80x = 4,711,214.70 × 2,821,945.20
  4. Step 4: Simplify right side
    3,140,809.80x = 13,294,789,708,834.44
  5. Step 5: Solve for x
    x = 13,294,789,708,834.44/3,140,809.80
  6. Step 6: Final answer
    x = 4,232,917.80

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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.