Home / 5,173,817.66-7,139,942.61-2,969,039.78

Finding the Fourth Proportional to 5,173,817.66, 7,139,942.61 and 2,969,039.78

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Solution

The fourth proportional to 5,173,817.66, 7,139,942.61 and 2,969,039.78 is: 4,097,317.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173,817.66 : 7,139,942.61 = 2,969,039.78 : x
  2. Step 2: Convert to fraction form
    5,173,817.66/7,139,942.61 = 2,969,039.78/x
  3. Step 3: Cross multiply
    5,173,817.66x = 7,139,942.61 × 2,969,039.78
  4. Step 4: Simplify right side
    5,173,817.66x = 21,198,773,636,007.02
  5. Step 5: Solve for x
    x = 21,198,773,636,007.02/5,173,817.66
  6. Step 6: Final answer
    x = 4,097,317.50

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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.