Home / 15,082,148.72-20,813,613.96-8,206,665.68

Finding the Fourth Proportional to 15,082,148.72, 20,813,613.96 and 8,206,665.68

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Solution

The fourth proportional to 15,082,148.72, 20,813,613.96 and 8,206,665.68 is: 11,325,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082,148.72 : 20,813,613.96 = 8,206,665.68 : x
  2. Step 2: Convert to fraction form
    15,082,148.72/20,813,613.96 = 8,206,665.68/x
  3. Step 3: Cross multiply
    15,082,148.72x = 20,813,613.96 × 8,206,665.68
  4. Step 4: Simplify right side
    15,082,148.72x = 170,810,371,362,300.91
  5. Step 5: Solve for x
    x = 170,810,371,362,300.91/15,082,148.72
  6. Step 6: Final answer
    x = 11,325,333.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.