Home / 7,140,928.41-9,854,561.39-3,877,781.85

Finding the Fourth Proportional to 7,140,928.41, 9,854,561.39 and 3,877,781.85

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Solution

The fourth proportional to 7,140,928.41, 9,854,561.39 and 3,877,781.85 is: 5,351,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140,928.41 : 9,854,561.39 = 3,877,781.85 : x
  2. Step 2: Convert to fraction form
    7,140,928.41/9,854,561.39 = 3,877,781.85/x
  3. Step 3: Cross multiply
    7,140,928.41x = 9,854,561.39 × 3,877,781.85
  4. Step 4: Simplify right side
    7,140,928.41x = 38,213,839,278,463.86
  5. Step 5: Solve for x
    x = 38,213,839,278,463.86/7,140,928.41
  6. Step 6: Final answer
    x = 5,351,382.49

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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.