Home / 36,428,791.20-54,627,631.52-21,086,670.72

Finding the Fourth Proportional to 36,428,791.20, 54,627,631.52 and 21,086,670.72

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Solution

The fourth proportional to 36,428,791.20, 54,627,631.52 and 21,086,670.72 is: 31,621,001.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,428,791.20 : 54,627,631.52 = 21,086,670.72 : x
  2. Step 2: Convert to fraction form
    36,428,791.20/54,627,631.52 = 21,086,670.72/x
  3. Step 3: Cross multiply
    36,428,791.20x = 54,627,631.52 × 21,086,670.72
  4. Step 4: Simplify right side
    36,428,791.20x = 1,151,914,878,075,733
  5. Step 5: Solve for x
    x = 1,151,914,878,075,733/36,428,791.20
  6. Step 6: Final answer
    x = 31,621,001.96

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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.