Home / 7,770,512.40-11,655,768.60-4,780,381.20

Finding the Fourth Proportional to 7,770,512.40, 11,655,768.60 and 4,780,381.20

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Solution

The fourth proportional to 7,770,512.40, 11,655,768.60 and 4,780,381.20 is: 7,170,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770,512.40 : 11,655,768.60 = 4,780,381.20 : x
  2. Step 2: Convert to fraction form
    7,770,512.40/11,655,768.60 = 4,780,381.20/x
  3. Step 3: Cross multiply
    7,770,512.40x = 11,655,768.60 × 4,780,381.20
  4. Step 4: Simplify right side
    7,770,512.40x = 55,719,017,086,990.32
  5. Step 5: Solve for x
    x = 55,719,017,086,990.32/7,770,512.40
  6. Step 6: Final answer
    x = 7,170,571.80

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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.