Home / 30,309,749.57-45,493,367.79-18,760,280.71

Finding the Fourth Proportional to 30,309,749.57, 45,493,367.79 and 18,760,280.71

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Solution

The fourth proportional to 30,309,749.57, 45,493,367.79 and 18,760,280.71 is: 28,158,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309,749.57 : 45,493,367.79 = 18,760,280.71 : x
  2. Step 2: Convert to fraction form
    30,309,749.57/45,493,367.79 = 18,760,280.71/x
  3. Step 3: Cross multiply
    30,309,749.57x = 45,493,367.79 × 18,760,280.71
  4. Step 4: Simplify right side
    30,309,749.57x = 853,468,350,183,672.38
  5. Step 5: Solve for x
    x = 853,468,350,183,672.38/30,309,749.57
  6. Step 6: Final answer
    x = 28,158,211.87

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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.