Home / 122,314,431.72-168,791,732.74-66,557,950.48

Finding the Fourth Proportional to 122,314,431.72, 168,791,732.74 and 66,557,950.48

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Solution

The fourth proportional to 122,314,431.72, 168,791,732.74 and 66,557,950.48 is: 91,848,783.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,314,431.72 : 168,791,732.74 = 66,557,950.48 : x
  2. Step 2: Convert to fraction form
    122,314,431.72/168,791,732.74 = 66,557,950.48/x
  3. Step 3: Cross multiply
    122,314,431.72x = 168,791,732.74 × 66,557,950.48
  4. Step 4: Simplify right side
    122,314,431.72x = 11,234,431,789,142,314
  5. Step 5: Solve for x
    x = 11,234,431,789,142,314/122,314,431.72
  6. Step 6: Final answer
    x = 91,848,783.75

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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.