Home / 38,768,939.66-53,501,137.83-21,365,284.88

Finding the Fourth Proportional to 38,768,939.66, 53,501,137.83 and 21,365,284.88

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Solution

The fourth proportional to 38,768,939.66, 53,501,137.83 and 21,365,284.88 is: 29,484,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,768,939.66 : 53,501,137.83 = 21,365,284.88 : x
  2. Step 2: Convert to fraction form
    38,768,939.66/53,501,137.83 = 21,365,284.88/x
  3. Step 3: Cross multiply
    38,768,939.66x = 53,501,137.83 × 21,365,284.88
  4. Step 4: Simplify right side
    38,768,939.66x = 1,143,067,051,275,847.75
  5. Step 5: Solve for x
    x = 1,143,067,051,275,847.75/38,768,939.66
  6. Step 6: Final answer
    x = 29,484,093.74

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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.