Home / 20,755,646.40-31,133,469.60-7,293,835.20

Finding the Fourth Proportional to 20,755,646.40, 31,133,469.60 and 7,293,835.20

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Solution

The fourth proportional to 20,755,646.40, 31,133,469.60 and 7,293,835.20 is: 10,940,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755,646.40 : 31,133,469.60 = 7,293,835.20 : x
  2. Step 2: Convert to fraction form
    20,755,646.40/31,133,469.60 = 7,293,835.20/x
  3. Step 3: Cross multiply
    20,755,646.40x = 31,133,469.60 × 7,293,835.20
  4. Step 4: Simplify right side
    20,755,646.40x = 227,082,396,466,609.94
  5. Step 5: Solve for x
    x = 227,082,396,466,609.94/20,755,646.40
  6. Step 6: Final answer
    x = 10,940,752.80

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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.