Home / 12,916,396.99-19,375,302.62-5,238,901.90

Finding the Fourth Proportional to 12,916,396.99, 19,375,302.62 and 5,238,901.90

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Solution

The fourth proportional to 12,916,396.99, 19,375,302.62 and 5,238,901.90 is: 7,858,639.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916,396.99 : 19,375,302.62 = 5,238,901.90 : x
  2. Step 2: Convert to fraction form
    12,916,396.99/19,375,302.62 = 5,238,901.90/x
  3. Step 3: Cross multiply
    12,916,396.99x = 19,375,302.62 × 5,238,901.90
  4. Step 4: Simplify right side
    12,916,396.99x = 101,505,309,708,992.98
  5. Step 5: Solve for x
    x = 101,505,309,708,992.98/12,916,396.99
  6. Step 6: Final answer
    x = 7,858,639.66

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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.