Home / 15,218,505-21,003,780.42-9,637,260.66

Finding the Fourth Proportional to 15,218,505, 21,003,780.42 and 9,637,260.66

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Solution

The fourth proportional to 15,218,505, 21,003,780.42 and 9,637,260.66 is: 13,300,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218,505 : 21,003,780.42 = 9,637,260.66 : x
  2. Step 2: Convert to fraction form
    15,218,505/21,003,780.42 = 9,637,260.66/x
  3. Step 3: Cross multiply
    15,218,505x = 21,003,780.42 × 9,637,260.66
  4. Step 4: Simplify right side
    15,218,505x = 202,418,906,752,944.31
  5. Step 5: Solve for x
    x = 202,418,906,752,944.31/15,218,505
  6. Step 6: Final answer
    x = 13,300,840.44

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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.