Home / 140,992,014.72-194,570,548.08-78,272,353.92

Finding the Fourth Proportional to 140,992,014.72, 194,570,548.08 and 78,272,353.92

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Solution

The fourth proportional to 140,992,014.72, 194,570,548.08 and 78,272,353.92 is: 108,016,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,992,014.72 : 194,570,548.08 = 78,272,353.92 : x
  2. Step 2: Convert to fraction form
    140,992,014.72/194,570,548.08 = 78,272,353.92/x
  3. Step 3: Cross multiply
    140,992,014.72x = 194,570,548.08 × 78,272,353.92
  4. Step 4: Simplify right side
    140,992,014.72x = 15,229,494,801,726,138
  5. Step 5: Solve for x
    x = 15,229,494,801,726,138/140,992,014.72
  6. Step 6: Final answer
    x = 108,016,718.76

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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.