Home / 72,529,211.10-108,793,816.65-68,274,183.90

Finding the Fourth Proportional to 72,529,211.10, 108,793,816.65 and 68,274,183.90

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Solution

The fourth proportional to 72,529,211.10, 108,793,816.65 and 68,274,183.90 is: 102,411,275.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,529,211.10 : 108,793,816.65 = 68,274,183.90 : x
  2. Step 2: Convert to fraction form
    72,529,211.10/108,793,816.65 = 68,274,183.90/x
  3. Step 3: Cross multiply
    72,529,211.10x = 108,793,816.65 × 68,274,183.90
  4. Step 4: Simplify right side
    72,529,211.10x = 7,427,809,045,144,983
  5. Step 5: Solve for x
    x = 7,427,809,045,144,983/72,529,211.10
  6. Step 6: Final answer
    x = 102,411,275.85

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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.