Home / 63,406,978-87,501,642.36-38,627,163.52

Finding the Fourth Proportional to 63,406,978, 87,501,642.36 and 38,627,163.52

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Solution

The fourth proportional to 63,406,978, 87,501,642.36 and 38,627,163.52 is: 53,305,493.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,406,978 : 87,501,642.36 = 38,627,163.52 : x
  2. Step 2: Convert to fraction form
    63,406,978/87,501,642.36 = 38,627,163.52/x
  3. Step 3: Cross multiply
    63,406,978x = 87,501,642.36 × 38,627,163.52
  4. Step 4: Simplify right side
    63,406,978x = 3,379,940,247,708,279
  5. Step 5: Solve for x
    x = 3,379,940,247,708,279/63,406,978
  6. Step 6: Final answer
    x = 53,305,493.41

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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.