Home / 6,438,768.79-8,885,571.65-3,538,160.41

Finding the Fourth Proportional to 6,438,768.79, 8,885,571.65 and 3,538,160.41

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Solution

The fourth proportional to 6,438,768.79, 8,885,571.65 and 3,538,160.41 is: 4,882,700.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,768.79 : 8,885,571.65 = 3,538,160.41 : x
  2. Step 2: Convert to fraction form
    6,438,768.79/8,885,571.65 = 3,538,160.41/x
  3. Step 3: Cross multiply
    6,438,768.79x = 8,885,571.65 × 3,538,160.41
  4. Step 4: Simplify right side
    6,438,768.79x = 31,438,577,770,129.71
  5. Step 5: Solve for x
    x = 31,438,577,770,129.71/6,438,768.79
  6. Step 6: Final answer
    x = 4,882,700.22

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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.