Home / 21,240,374.80-29,301,105.48-13,409,591.66

Finding the Fourth Proportional to 21,240,374.80, 29,301,105.48 and 13,409,591.66

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Solution

The fourth proportional to 21,240,374.80, 29,301,105.48 and 13,409,591.66 is: 18,498,537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240,374.80 : 29,301,105.48 = 13,409,591.66 : x
  2. Step 2: Convert to fraction form
    21,240,374.80/29,301,105.48 = 13,409,591.66/x
  3. Step 3: Cross multiply
    21,240,374.80x = 29,301,105.48 × 13,409,591.66
  4. Step 4: Simplify right side
    21,240,374.80x = 392,915,859,673,388.31
  5. Step 5: Solve for x
    x = 392,915,859,673,388.31/21,240,374.80
  6. Step 6: Final answer
    x = 18,498,537.03

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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.