Home / 38,238,858.61-52,769,632.39-20,835,203.78

Finding the Fourth Proportional to 38,238,858.61, 52,769,632.39 and 20,835,203.78

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Solution

The fourth proportional to 38,238,858.61, 52,769,632.39 and 20,835,203.78 is: 28,752,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238,858.61 : 52,769,632.39 = 20,835,203.78 : x
  2. Step 2: Convert to fraction form
    38,238,858.61/52,769,632.39 = 20,835,203.78/x
  3. Step 3: Cross multiply
    38,238,858.61x = 52,769,632.39 × 20,835,203.78
  4. Step 4: Simplify right side
    38,238,858.61x = 1,099,466,044,321,174.50
  5. Step 5: Solve for x
    x = 1,099,466,044,321,174.50/38,238,858.61
  6. Step 6: Final answer
    x = 28,752,585.31

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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.