Home / 19,191,986.40-28,773,982.80-7,826,584.80

Finding the Fourth Proportional to 19,191,986.40, 28,773,982.80 and 7,826,584.80

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Solution

The fourth proportional to 19,191,986.40, 28,773,982.80 and 7,826,584.80 is: 11,734,169.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191,986.40 : 28,773,982.80 = 7,826,584.80 : x
  2. Step 2: Convert to fraction form
    19,191,986.40/28,773,982.80 = 7,826,584.80/x
  3. Step 3: Cross multiply
    19,191,986.40x = 28,773,982.80 × 7,826,584.80
  4. Step 4: Simplify right side
    19,191,986.40x = 225,202,016,417,941.44
  5. Step 5: Solve for x
    x = 225,202,016,417,941.44/19,191,986.40
  6. Step 6: Final answer
    x = 11,734,169.24

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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.