Home / 7,880,013.70-11,811,272.55-3,086,109.70

Finding the Fourth Proportional to 7,880,013.70, 11,811,272.55 and 3,086,109.70

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Solution

The fourth proportional to 7,880,013.70, 11,811,272.55 and 3,086,109.70 is: 4,625,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880,013.70 : 11,811,272.55 = 3,086,109.70 : x
  2. Step 2: Convert to fraction form
    7,880,013.70/11,811,272.55 = 3,086,109.70/x
  3. Step 3: Cross multiply
    7,880,013.70x = 11,811,272.55 × 3,086,109.70
  4. Step 4: Simplify right side
    7,880,013.70x = 36,450,882,785,898.74
  5. Step 5: Solve for x
    x = 36,450,882,785,898.74/7,880,013.70
  6. Step 6: Final answer
    x = 4,625,738.50

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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.