Home / 19,191,965.40-28,773,951.30-7,826,563.80

Finding the Fourth Proportional to 19,191,965.40, 28,773,951.30 and 7,826,563.80

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Solution

The fourth proportional to 19,191,965.40, 28,773,951.30 and 7,826,563.80 is: 11,734,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191,965.40 : 28,773,951.30 = 7,826,563.80 : x
  2. Step 2: Convert to fraction form
    19,191,965.40/28,773,951.30 = 7,826,563.80/x
  3. Step 3: Cross multiply
    19,191,965.40x = 28,773,951.30 × 7,826,563.80
  4. Step 4: Simplify right side
    19,191,965.40x = 225,201,165,627,542.94
  5. Step 5: Solve for x
    x = 225,201,165,627,542.94/19,191,965.40
  6. Step 6: Final answer
    x = 11,734,137.75

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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.