Home / 6,438,438.72-8,885,042.76-3,538,016.64

Finding the Fourth Proportional to 6,438,438.72, 8,885,042.76 and 3,538,016.64

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Solution

The fourth proportional to 6,438,438.72, 8,885,042.76 and 3,538,016.64 is: 4,882,461.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,438.72 : 8,885,042.76 = 3,538,016.64 : x
  2. Step 2: Convert to fraction form
    6,438,438.72/8,885,042.76 = 3,538,016.64/x
  3. Step 3: Cross multiply
    6,438,438.72x = 8,885,042.76 × 3,538,016.64
  4. Step 4: Simplify right side
    6,438,438.72x = 31,435,429,131,991.53
  5. Step 5: Solve for x
    x = 31,435,429,131,991.53/6,438,438.72
  6. Step 6: Final answer
    x = 4,882,461.49

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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.