Home / 78,149,034.72-117,241,410.96-27,031,010.40

Finding the Fourth Proportional to 78,149,034.72, 117,241,410.96 and 27,031,010.40

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Solution

The fourth proportional to 78,149,034.72, 117,241,410.96 and 27,031,010.40 is: 40,552,692.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,149,034.72 : 117,241,410.96 = 27,031,010.40 : x
  2. Step 2: Convert to fraction form
    78,149,034.72/117,241,410.96 = 27,031,010.40/x
  3. Step 3: Cross multiply
    78,149,034.72x = 117,241,410.96 × 27,031,010.40
  4. Step 4: Simplify right side
    78,149,034.72x = 3,169,153,798,970,433.50
  5. Step 5: Solve for x
    x = 3,169,153,798,970,433.50/78,149,034.72
  6. Step 6: Final answer
    x = 40,552,692.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.