Home / 5,451,913.42-7,523,670.10-3,128,620.94

Finding the Fourth Proportional to 5,451,913.42, 7,523,670.10 and 3,128,620.94

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Solution

The fourth proportional to 5,451,913.42, 7,523,670.10 and 3,128,620.94 is: 4,317,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451,913.42 : 7,523,670.10 = 3,128,620.94 : x
  2. Step 2: Convert to fraction form
    5,451,913.42/7,523,670.10 = 3,128,620.94/x
  3. Step 3: Cross multiply
    5,451,913.42x = 7,523,670.10 × 3,128,620.94
  4. Step 4: Simplify right side
    5,451,913.42x = 23,538,711,820,511.89
  5. Step 5: Solve for x
    x = 23,538,711,820,511.89/5,451,913.42
  6. Step 6: Final answer
    x = 4,317,513.87

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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.