Home / 10,505,716.70-15,743,812.80-8,350,428.20

Finding the Fourth Proportional to 10,505,716.70, 15,743,812.80 and 8,350,428.20

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Solution

The fourth proportional to 10,505,716.70, 15,743,812.80 and 8,350,428.20 is: 12,513,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505,716.70 : 15,743,812.80 = 8,350,428.20 : x
  2. Step 2: Convert to fraction form
    10,505,716.70/15,743,812.80 = 8,350,428.20/x
  3. Step 3: Cross multiply
    10,505,716.70x = 15,743,812.80 × 8,350,428.20
  4. Step 4: Simplify right side
    10,505,716.70x = 131,467,578,380,640.97
  5. Step 5: Solve for x
    x = 131,467,578,380,640.97/10,505,716.70
  6. Step 6: Final answer
    x = 12,513,908.58

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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.