Home / 20,491,683.48-30,742,837.20-10,899,171

Finding the Fourth Proportional to 20,491,683.48, 30,742,837.20 and 10,899,171

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Solution

The fourth proportional to 20,491,683.48, 30,742,837.20 and 10,899,171 is: 16,351,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,491,683.48 : 30,742,837.20 = 10,899,171 : x
  2. Step 2: Convert to fraction form
    20,491,683.48/30,742,837.20 = 10,899,171/x
  3. Step 3: Cross multiply
    20,491,683.48x = 30,742,837.20 × 10,899,171
  4. Step 4: Simplify right side
    20,491,683.48x = 335,071,439,667,961.19
  5. Step 5: Solve for x
    x = 335,071,439,667,961.19/20,491,683.48
  6. Step 6: Final answer
    x = 16,351,581.85

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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.