Home / 5,172,715.42-7,759,540.60-1,977,869.27

Finding the Fourth Proportional to 5,172,715.42, 7,759,540.60 and 1,977,869.27

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Solution

The fourth proportional to 5,172,715.42, 7,759,540.60 and 1,977,869.27 is: 2,966,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,715.42 : 7,759,540.60 = 1,977,869.27 : x
  2. Step 2: Convert to fraction form
    5,172,715.42/7,759,540.60 = 1,977,869.27/x
  3. Step 3: Cross multiply
    5,172,715.42x = 7,759,540.60 × 1,977,869.27
  4. Step 4: Simplify right side
    5,172,715.42x = 15,347,356,916,511.54
  5. Step 5: Solve for x
    x = 15,347,356,916,511.54/5,172,715.42
  6. Step 6: Final answer
    x = 2,966,982.65

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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.