Home / 20,763,043.38-28,444,893.53-19,986,766.74

Finding the Fourth Proportional to 20,763,043.38, 28,444,893.53 and 19,986,766.74

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Solution

The fourth proportional to 20,763,043.38, 28,444,893.53 and 19,986,766.74 is: 27,381,412.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763,043.38 : 28,444,893.53 = 19,986,766.74 : x
  2. Step 2: Convert to fraction form
    20,763,043.38/28,444,893.53 = 19,986,766.74/x
  3. Step 3: Cross multiply
    20,763,043.38x = 28,444,893.53 × 19,986,766.74
  4. Step 4: Simplify right side
    20,763,043.38x = 568,521,451,828,311.25
  5. Step 5: Solve for x
    x = 568,521,451,828,311.25/20,763,043.38
  6. Step 6: Final answer
    x = 27,381,412.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.