Home / 12,343,156.13-18,515,951.82-4,255,066.77

Finding the Fourth Proportional to 12,343,156.13, 18,515,951.82 and 4,255,066.77

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Solution

The fourth proportional to 12,343,156.13, 18,515,951.82 and 4,255,066.77 is: 6,383,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343,156.13 : 18,515,951.82 = 4,255,066.77 : x
  2. Step 2: Convert to fraction form
    12,343,156.13/18,515,951.82 = 4,255,066.77/x
  3. Step 3: Cross multiply
    12,343,156.13x = 18,515,951.82 × 4,255,066.77
  4. Step 4: Simplify right side
    12,343,156.13x = 78,786,611,304,203.02
  5. Step 5: Solve for x
    x = 78,786,611,304,203.02/12,343,156.13
  6. Step 6: Final answer
    x = 6,383,019.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.