Home / 13,679,604.42-20,505,874.95-6,478,484.10

Finding the Fourth Proportional to 13,679,604.42, 20,505,874.95 and 6,478,484.10

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Solution

The fourth proportional to 13,679,604.42, 20,505,874.95 and 6,478,484.10 is: 9,711,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679,604.42 : 20,505,874.95 = 6,478,484.10 : x
  2. Step 2: Convert to fraction form
    13,679,604.42/20,505,874.95 = 6,478,484.10/x
  3. Step 3: Cross multiply
    13,679,604.42x = 20,505,874.95 × 6,478,484.10
  4. Step 4: Simplify right side
    13,679,604.42x = 132,846,984,820,163.28
  5. Step 5: Solve for x
    x = 132,846,984,820,163.28/13,679,604.42
  6. Step 6: Final answer
    x = 9,711,317.72

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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.