Home / 142,156,170.27-196,183,092.98-79,433,790.80

Finding the Fourth Proportional to 142,156,170.27, 196,183,092.98 and 79,433,790.80

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Solution

The fourth proportional to 142,156,170.27, 196,183,092.98 and 79,433,790.80 is: 109,622,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,156,170.27 : 196,183,092.98 = 79,433,790.80 : x
  2. Step 2: Convert to fraction form
    142,156,170.27/196,183,092.98 = 79,433,790.80/x
  3. Step 3: Cross multiply
    142,156,170.27x = 196,183,092.98 × 79,433,790.80
  4. Step 4: Simplify right side
    142,156,170.27x = 15,583,566,764,892,184
  5. Step 5: Solve for x
    x = 15,583,566,764,892,184/142,156,170.27
  6. Step 6: Final answer
    x = 109,622,865.72

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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.