Home / 139,976,193.60-209,859,314.40-71,867,764.80

Finding the Fourth Proportional to 139,976,193.60, 209,859,314.40 and 71,867,764.80

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Solution

The fourth proportional to 139,976,193.60, 209,859,314.40 and 71,867,764.80 is: 107,747,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,976,193.60 : 209,859,314.40 = 71,867,764.80 : x
  2. Step 2: Convert to fraction form
    139,976,193.60/209,859,314.40 = 71,867,764.80/x
  3. Step 3: Cross multiply
    139,976,193.60x = 209,859,314.40 × 71,867,764.80
  4. Step 4: Simplify right side
    139,976,193.60x = 15,082,119,848,388,452
  5. Step 5: Solve for x
    x = 15,082,119,848,388,452/139,976,193.60
  6. Step 6: Final answer
    x = 107,747,749.53

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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.