Home / 11,817,305.79-16,321,334.05-7,943,100.90

Finding the Fourth Proportional to 11,817,305.79, 16,321,334.05 and 7,943,100.90

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Solution

The fourth proportional to 11,817,305.79, 16,321,334.05 and 7,943,100.90 is: 10,970,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817,305.79 : 16,321,334.05 = 7,943,100.90 : x
  2. Step 2: Convert to fraction form
    11,817,305.79/16,321,334.05 = 7,943,100.90/x
  3. Step 3: Cross multiply
    11,817,305.79x = 16,321,334.05 × 7,943,100.90
  4. Step 4: Simplify right side
    11,817,305.79x = 129,642,003,181,755.66
  5. Step 5: Solve for x
    x = 129,642,003,181,755.66/11,817,305.79
  6. Step 6: Final answer
    x = 10,970,521.16

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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.