Home / 6,438,769.28-8,885,572.34-3,538,160.90

Finding the Fourth Proportional to 6,438,769.28, 8,885,572.34 and 3,538,160.90

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Solution

The fourth proportional to 6,438,769.28, 8,885,572.34 and 3,538,160.90 is: 4,882,700.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,769.28 : 8,885,572.34 = 3,538,160.90 : x
  2. Step 2: Convert to fraction form
    6,438,769.28/8,885,572.34 = 3,538,160.90/x
  3. Step 3: Cross multiply
    6,438,769.28x = 8,885,572.34 × 3,538,160.90
  4. Step 4: Simplify right side
    6,438,769.28x = 31,438,584,627,509.50
  5. Step 5: Solve for x
    x = 31,438,584,627,509.50/6,438,769.28
  6. Step 6: Final answer
    x = 4,882,700.91

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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.