Home / 21,320,295.66-29,422,008-11,530,739.85

Finding the Fourth Proportional to 21,320,295.66, 29,422,008 and 11,530,739.85

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Solution

The fourth proportional to 21,320,295.66, 29,422,008 and 11,530,739.85 is: 15,912,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,295.66 : 29,422,008 = 11,530,739.85 : x
  2. Step 2: Convert to fraction form
    21,320,295.66/29,422,008 = 11,530,739.85/x
  3. Step 3: Cross multiply
    21,320,295.66x = 29,422,008 × 11,530,739.85
  4. Step 4: Simplify right side
    21,320,295.66x = 339,257,520,112,618.81
  5. Step 5: Solve for x
    x = 339,257,520,112,618.81/21,320,295.66
  6. Step 6: Final answer
    x = 15,912,420.99

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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.