Home / 19,839,840.80-27,381,968.48-12,109,375.36

Finding the Fourth Proportional to 19,839,840.80, 27,381,968.48 and 12,109,375.36

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Solution

The fourth proportional to 19,839,840.80, 27,381,968.48 and 12,109,375.36 is: 16,712,761.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839,840.80 : 27,381,968.48 = 12,109,375.36 : x
  2. Step 2: Convert to fraction form
    19,839,840.80/27,381,968.48 = 12,109,375.36/x
  3. Step 3: Cross multiply
    19,839,840.80x = 27,381,968.48 × 12,109,375.36
  4. Step 4: Simplify right side
    19,839,840.80x = 331,578,534,222,551.94
  5. Step 5: Solve for x
    x = 331,578,534,222,551.94/19,839,840.80
  6. Step 6: Final answer
    x = 16,712,761.84

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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.