Home / 72,241,247.60-108,378,419.88-31,307,558.96

Finding the Fourth Proportional to 72,241,247.60, 108,378,419.88 and 31,307,558.96

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Solution

The fourth proportional to 72,241,247.60, 108,378,419.88 and 31,307,558.96 is: 46,968,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,241,247.60 : 108,378,419.88 = 31,307,558.96 : x
  2. Step 2: Convert to fraction form
    72,241,247.60/108,378,419.88 = 31,307,558.96/x
  3. Step 3: Cross multiply
    72,241,247.60x = 108,378,419.88 × 31,307,558.96
  4. Step 4: Simplify right side
    72,241,247.60x = 3,393,063,770,384,736
  5. Step 5: Solve for x
    x = 3,393,063,770,384,736/72,241,247.60
  6. Step 6: Final answer
    x = 46,968,510.14

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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.