Home / 120,783,040.76-166,685,314.92-68,576,933.72

Finding the Fourth Proportional to 120,783,040.76, 166,685,314.92 and 68,576,933.72

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Solution

The fourth proportional to 120,783,040.76, 166,685,314.92 and 68,576,933.72 is: 94,638,847.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,783,040.76 : 166,685,314.92 = 68,576,933.72 : x
  2. Step 2: Convert to fraction form
    120,783,040.76/166,685,314.92 = 68,576,933.72/x
  3. Step 3: Cross multiply
    120,783,040.76x = 166,685,314.92 × 68,576,933.72
  4. Step 4: Simplify right side
    120,783,040.76x = 11,430,767,793,366,166
  5. Step 5: Solve for x
    x = 11,430,767,793,366,166/120,783,040.76
  6. Step 6: Final answer
    x = 94,638,847.65

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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.