Home / 13,684,007.70-18,883,689.57-7,882,771.50

Finding the Fourth Proportional to 13,684,007.70, 18,883,689.57 and 7,882,771.50

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Solution

The fourth proportional to 13,684,007.70, 18,883,689.57 and 7,882,771.50 is: 10,878,085.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684,007.70 : 18,883,689.57 = 7,882,771.50 : x
  2. Step 2: Convert to fraction form
    13,684,007.70/18,883,689.57 = 7,882,771.50/x
  3. Step 3: Cross multiply
    13,684,007.70x = 18,883,689.57 × 7,882,771.50
  4. Step 4: Simplify right side
    13,684,007.70x = 148,855,809,957,243.25
  5. Step 5: Solve for x
    x = 148,855,809,957,243.25/13,684,007.70
  6. Step 6: Final answer
    x = 10,878,085.81

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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.