Home / 38,238,540.80-52,768,519.32-20,835,029.84

Finding the Fourth Proportional to 38,238,540.80, 52,768,519.32 and 20,835,029.84

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Solution

The fourth proportional to 38,238,540.80, 52,768,519.32 and 20,835,029.84 is: 28,751,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,540.80 : 52,768,519.32 = 20,835,029.84 : x
  2. Step 2: Convert to fraction form
    38,238,540.80/52,768,519.32 = 20,835,029.84/x
  3. Step 3: Cross multiply
    38,238,540.80x = 52,768,519.32 × 20,835,029.84
  4. Step 4: Simplify right side
    38,238,540.80x = 1,099,433,674,644,816.50
  5. Step 5: Solve for x
    x = 1,099,433,674,644,816.50/38,238,540.80
  6. Step 6: Final answer
    x = 28,751,977.76

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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.