Home / 21,320,114.62-29,421,758.22-11,530,558.78

Finding the Fourth Proportional to 21,320,114.62, 29,421,758.22 and 11,530,558.78

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Solution

The fourth proportional to 21,320,114.62, 29,421,758.22 and 11,530,558.78 is: 15,912,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,114.62 : 29,421,758.22 = 11,530,558.78 : x
  2. Step 2: Convert to fraction form
    21,320,114.62/29,421,758.22 = 11,530,558.78/x
  3. Step 3: Cross multiply
    21,320,114.62x = 29,421,758.22 × 11,530,558.78
  4. Step 4: Simplify right side
    21,320,114.62x = 339,249,312,566,658.12
  5. Step 5: Solve for x
    x = 339,249,312,566,658.12/21,320,114.62
  6. Step 6: Final answer
    x = 15,912,171.14

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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.