Home / 21,699,697.30-29,945,542.48-12,407,441.83

Finding the Fourth Proportional to 21,699,697.30, 29,945,542.48 and 12,407,441.83

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Solution

The fourth proportional to 21,699,697.30, 29,945,542.48 and 12,407,441.83 is: 17,122,246.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,699,697.30 : 29,945,542.48 = 12,407,441.83 : x
  2. Step 2: Convert to fraction form
    21,699,697.30/29,945,542.48 = 12,407,441.83/x
  3. Step 3: Cross multiply
    21,699,697.30x = 29,945,542.48 × 12,407,441.83
  4. Step 4: Simplify right side
    21,699,697.30x = 371,547,576,388,393.94
  5. Step 5: Solve for x
    x = 371,547,576,388,393.94/21,699,697.30
  6. Step 6: Final answer
    x = 17,122,246.97

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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.