Home / 15,285,431.96-21,084,937.62-9,776,796.92

Finding the Fourth Proportional to 15,285,431.96, 21,084,937.62 and 9,776,796.92

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Solution

The fourth proportional to 15,285,431.96, 21,084,937.62 and 9,776,796.92 is: 13,486,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285,431.96 : 21,084,937.62 = 9,776,796.92 : x
  2. Step 2: Convert to fraction form
    15,285,431.96/21,084,937.62 = 9,776,796.92/x
  3. Step 3: Cross multiply
    15,285,431.96x = 21,084,937.62 × 9,776,796.92
  4. Step 4: Simplify right side
    15,285,431.96x = 206,143,153,181,608.12
  5. Step 5: Solve for x
    x = 206,143,153,181,608.12/15,285,431.96
  6. Step 6: Final answer
    x = 13,486,249.77

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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.