Home / 21,289,187.24-29,379,089.75-11,499,631.22

Finding the Fourth Proportional to 21,289,187.24, 29,379,089.75 and 11,499,631.22

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Solution

The fourth proportional to 21,289,187.24, 29,379,089.75 and 11,499,631.22 is: 15,869,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,187.24 : 29,379,089.75 = 11,499,631.22 : x
  2. Step 2: Convert to fraction form
    21,289,187.24/29,379,089.75 = 11,499,631.22/x
  3. Step 3: Cross multiply
    21,289,187.24x = 29,379,089.75 × 11,499,631.22
  4. Step 4: Simplify right side
    21,289,187.24x = 337,848,697,720,231.56
  5. Step 5: Solve for x
    x = 337,848,697,720,231.56/21,289,187.24
  6. Step 6: Final answer
    x = 15,869,497.22

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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.