Home / 2,205,816.40-3,309,502.20-2,128,056.40

Finding the Fourth Proportional to 2,205,816.40, 3,309,502.20 and 2,128,056.40

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Solution

The fourth proportional to 2,205,816.40, 3,309,502.20 and 2,128,056.40 is: 3,192,834.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205,816.40 : 3,309,502.20 = 2,128,056.40 : x
  2. Step 2: Convert to fraction form
    2,205,816.40/3,309,502.20 = 2,128,056.40/x
  3. Step 3: Cross multiply
    2,205,816.40x = 3,309,502.20 × 2,128,056.40
  4. Step 4: Simplify right side
    2,205,816.40x = 7,042,807,337,524.08
  5. Step 5: Solve for x
    x = 7,042,807,337,524.08/2,205,816.40
  6. Step 6: Final answer
    x = 3,192,834.79

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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.