Home / 5,180,429.40-7,770,644.10-5,147,251.80

Finding the Fourth Proportional to 5,180,429.40, 7,770,644.10 and 5,147,251.80

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Solution

The fourth proportional to 5,180,429.40, 7,770,644.10 and 5,147,251.80 is: 7,720,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,429.40 : 7,770,644.10 = 5,147,251.80 : x
  2. Step 2: Convert to fraction form
    5,180,429.40/7,770,644.10 = 5,147,251.80/x
  3. Step 3: Cross multiply
    5,180,429.40x = 7,770,644.10 × 5,147,251.80
  4. Step 4: Simplify right side
    5,180,429.40x = 39,997,461,830,884.38
  5. Step 5: Solve for x
    x = 39,997,461,830,884.38/5,180,429.40
  6. Step 6: Final answer
    x = 7,720,877.70

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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.