Home / 5,286,918.70-7,930,378.05-4,930,000.30

Finding the Fourth Proportional to 5,286,918.70, 7,930,378.05 and 4,930,000.30

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Solution

The fourth proportional to 5,286,918.70, 7,930,378.05 and 4,930,000.30 is: 7,395,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286,918.70 : 7,930,378.05 = 4,930,000.30 : x
  2. Step 2: Convert to fraction form
    5,286,918.70/7,930,378.05 = 4,930,000.30/x
  3. Step 3: Cross multiply
    5,286,918.70x = 7,930,378.05 × 4,930,000.30
  4. Step 4: Simplify right side
    5,286,918.70x = 39,096,766,165,613.41
  5. Step 5: Solve for x
    x = 39,096,766,165,613.41/5,286,918.70
  6. Step 6: Final answer
    x = 7,395,000.45

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Double scale
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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.