Home / 72,907,247.40-109,213,904.70-45,529,506.60

Finding the Fourth Proportional to 72,907,247.40, 109,213,904.70 and 45,529,506.60

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Solution

The fourth proportional to 72,907,247.40, 109,213,904.70 and 45,529,506.60 is: 68,202,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,907,247.40 : 109,213,904.70 = 45,529,506.60 : x
  2. Step 2: Convert to fraction form
    72,907,247.40/109,213,904.70 = 45,529,506.60/x
  3. Step 3: Cross multiply
    72,907,247.40x = 109,213,904.70 × 45,529,506.60
  4. Step 4: Simplify right side
    72,907,247.40x = 4,972,455,194,850,421
  5. Step 5: Solve for x
    x = 4,972,455,194,850,421/72,907,247.40
  6. Step 6: Final answer
    x = 68,202,481.54

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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.