Home / 78,060,596.40-117,044,238.60-47,790,183.60

Finding the Fourth Proportional to 78,060,596.40, 117,044,238.60 and 47,790,183.60

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Solution

The fourth proportional to 78,060,596.40, 117,044,238.60 and 47,790,183.60 is: 71,656,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,060,596.40 : 117,044,238.60 = 47,790,183.60 : x
  2. Step 2: Convert to fraction form
    78,060,596.40/117,044,238.60 = 47,790,183.60/x
  3. Step 3: Cross multiply
    78,060,596.40x = 117,044,238.60 × 47,790,183.60
  4. Step 4: Simplify right side
    78,060,596.40x = 5,593,565,652,016,207
  5. Step 5: Solve for x
    x = 5,593,565,652,016,207/78,060,596.40
  6. Step 6: Final answer
    x = 71,656,711.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.