Home / 217,631,605.72-300,308,745.88-123,515,820.04

Finding the Fourth Proportional to 217,631,605.72, 300,308,745.88 and 123,515,820.04

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Solution

The fourth proportional to 217,631,605.72, 300,308,745.88 and 123,515,820.04 is: 170,438,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,631,605.72 : 300,308,745.88 = 123,515,820.04 : x
  2. Step 2: Convert to fraction form
    217,631,605.72/300,308,745.88 = 123,515,820.04/x
  3. Step 3: Cross multiply
    217,631,605.72x = 300,308,745.88 × 123,515,820.04
  4. Step 4: Simplify right side
    217,631,605.72x = 37,092,881,012,552,176
  5. Step 5: Solve for x
    x = 37,092,881,012,552,176/217,631,605.72
  6. Step 6: Final answer
    x = 170,438,851.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.