Home / 21,065,656.84-31,589,512.98-8,277,190.72

Finding the Fourth Proportional to 21,065,656.84, 31,589,512.98 and 8,277,190.72

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Solution

The fourth proportional to 21,065,656.84, 31,589,512.98 and 8,277,190.72 is: 12,412,260.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,656.84 : 31,589,512.98 = 8,277,190.72 : x
  2. Step 2: Convert to fraction form
    21,065,656.84/31,589,512.98 = 8,277,190.72/x
  3. Step 3: Cross multiply
    21,065,656.84x = 31,589,512.98 × 8,277,190.72
  4. Step 4: Simplify right side
    21,065,656.84x = 261,472,423,687,375.53
  5. Step 5: Solve for x
    x = 261,472,423,687,375.53/21,065,656.84
  6. Step 6: Final answer
    x = 12,412,260.66

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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.