Home / 756,389,847.56-1,043,819,382.49-421,883,930.86

Finding the Fourth Proportional to 756,389,847.56, 1,043,819,382.49 and 421,883,930.86

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Solution

The fourth proportional to 756,389,847.56, 1,043,819,382.49 and 421,883,930.86 is: 582,200,601.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,389,847.56 : 1,043,819,382.49 = 421,883,930.86 : x
  2. Step 2: Convert to fraction form
    756,389,847.56/1,043,819,382.49 = 421,883,930.86/x
  3. Step 3: Cross multiply
    756,389,847.56x = 1,043,819,382.49 × 421,883,930.86
  4. Step 4: Simplify right side
    756,389,847.56x = 440,370,624,190,629,632
  5. Step 5: Solve for x
    x = 440,370,624,190,629,632/756,389,847.56
  6. Step 6: Final answer
    x = 582,200,601.46

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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.