Home / 12,687,611.61-17,508,859.74-6,886,393.05

Finding the Fourth Proportional to 12,687,611.61, 17,508,859.74 and 6,886,393.05

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Solution

The fourth proportional to 12,687,611.61, 17,508,859.74 and 6,886,393.05 is: 9,503,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,611.61 : 17,508,859.74 = 6,886,393.05 : x
  2. Step 2: Convert to fraction form
    12,687,611.61/17,508,859.74 = 6,886,393.05/x
  3. Step 3: Cross multiply
    12,687,611.61x = 17,508,859.74 × 6,886,393.05
  4. Step 4: Simplify right side
    12,687,611.61x = 120,572,890,026,960.80
  5. Step 5: Solve for x
    x = 120,572,890,026,960.80/12,687,611.61
  6. Step 6: Final answer
    x = 9,503,198.37

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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.