Home / 62,138,791.78-85,788,272.40-55,244,189.63

Finding the Fourth Proportional to 62,138,791.78, 85,788,272.40 and 55,244,189.63

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Solution

The fourth proportional to 62,138,791.78, 85,788,272.40 and 55,244,189.63 is: 76,269,644.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,138,791.78 : 85,788,272.40 = 55,244,189.63 : x
  2. Step 2: Convert to fraction form
    62,138,791.78/85,788,272.40 = 55,244,189.63/x
  3. Step 3: Cross multiply
    62,138,791.78x = 85,788,272.40 × 55,244,189.63
  4. Step 4: Simplify right side
    62,138,791.78x = 4,739,303,588,503,000
  5. Step 5: Solve for x
    x = 4,739,303,588,503,000/62,138,791.78
  6. Step 6: Final answer
    x = 76,269,644.98

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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.