Home / 19,839,840.30-27,381,967.79-12,109,374.86

Finding the Fourth Proportional to 19,839,840.30, 27,381,967.79 and 12,109,374.86

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Solution

The fourth proportional to 19,839,840.30, 27,381,967.79 and 12,109,374.86 is: 16,712,761.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839,840.30 : 27,381,967.79 = 12,109,374.86 : x
  2. Step 2: Convert to fraction form
    19,839,840.30/27,381,967.79 = 12,109,374.86/x
  3. Step 3: Cross multiply
    19,839,840.30x = 27,381,967.79 × 12,109,374.86
  4. Step 4: Simplify right side
    19,839,840.30x = 331,578,512,176,099.06
  5. Step 5: Solve for x
    x = 331,578,512,176,099.06/19,839,840.30
  6. Step 6: Final answer
    x = 16,712,761.15

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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.