Home / 7,782,128.39-11,690,907.32-5,629,792.34

Finding the Fourth Proportional to 7,782,128.39, 11,690,907.32 and 5,629,792.34

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Solution

The fourth proportional to 7,782,128.39, 11,690,907.32 and 5,629,792.34 is: 8,457,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782,128.39 : 11,690,907.32 = 5,629,792.34 : x
  2. Step 2: Convert to fraction form
    7,782,128.39/11,690,907.32 = 5,629,792.34/x
  3. Step 3: Cross multiply
    7,782,128.39x = 11,690,907.32 × 5,629,792.34
  4. Step 4: Simplify right side
    7,782,128.39x = 65,817,380,521,087.68
  5. Step 5: Solve for x
    x = 65,817,380,521,087.68/7,782,128.39
  6. Step 6: Final answer
    x = 8,457,503.81

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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.