Home / 6,618,885.20-9,930,660.60-6,385,605.20

Finding the Fourth Proportional to 6,618,885.20, 9,930,660.60 and 6,385,605.20

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Solution

The fourth proportional to 6,618,885.20, 9,930,660.60 and 6,385,605.20 is: 9,580,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618,885.20 : 9,930,660.60 = 6,385,605.20 : x
  2. Step 2: Convert to fraction form
    6,618,885.20/9,930,660.60 = 6,385,605.20/x
  3. Step 3: Cross multiply
    6,618,885.20x = 9,930,660.60 × 6,385,605.20
  4. Step 4: Simplify right side
    6,618,885.20x = 63,413,277,966,795.12
  5. Step 5: Solve for x
    x = 63,413,277,966,795.12/6,618,885.20
  6. Step 6: Final answer
    x = 9,580,658.38

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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.