Home / 12,231,021.87-16,878,820.91-6,724,490.40

Finding the Fourth Proportional to 12,231,021.87, 16,878,820.91 and 6,724,490.40

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Solution

The fourth proportional to 12,231,021.87, 16,878,820.91 and 6,724,490.40 is: 9,279,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231,021.87 : 16,878,820.91 = 6,724,490.40 : x
  2. Step 2: Convert to fraction form
    12,231,021.87/16,878,820.91 = 6,724,490.40/x
  3. Step 3: Cross multiply
    12,231,021.87x = 16,878,820.91 × 6,724,490.40
  4. Step 4: Simplify right side
    12,231,021.87x = 113,501,469,138,991.83
  5. Step 5: Solve for x
    x = 113,501,469,138,991.83/12,231,021.87
  6. Step 6: Final answer
    x = 9,279,802.65

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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.