Home / 39,190,400.21-54,084,598.22-21,787,036.27

Finding the Fourth Proportional to 39,190,400.21, 54,084,598.22 and 21,787,036.27

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Solution

The fourth proportional to 39,190,400.21, 54,084,598.22 and 21,787,036.27 is: 30,067,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190,400.21 : 54,084,598.22 = 21,787,036.27 : x
  2. Step 2: Convert to fraction form
    39,190,400.21/54,084,598.22 = 21,787,036.27/x
  3. Step 3: Cross multiply
    39,190,400.21x = 54,084,598.22 × 21,787,036.27
  4. Step 4: Simplify right side
    39,190,400.21x = 1,178,343,103,067,517.50
  5. Step 5: Solve for x
    x = 1,178,343,103,067,517.50/39,190,400.21
  6. Step 6: Final answer
    x = 30,067,136.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.