Home / 20,255,748.87-30,384,975.20-7,123,590.73

Finding the Fourth Proportional to 20,255,748.87, 30,384,975.20 and 7,123,590.73

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Solution

The fourth proportional to 20,255,748.87, 30,384,975.20 and 7,123,590.73 is: 10,685,861.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255,748.87 : 30,384,975.20 = 7,123,590.73 : x
  2. Step 2: Convert to fraction form
    20,255,748.87/30,384,975.20 = 7,123,590.73/x
  3. Step 3: Cross multiply
    20,255,748.87x = 30,384,975.20 × 7,123,590.73
  4. Step 4: Simplify right side
    20,255,748.87x = 216,450,127,665,999.91
  5. Step 5: Solve for x
    x = 216,450,127,665,999.91/20,255,748.87
  6. Step 6: Final answer
    x = 10,685,861.53

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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.