Home / 7,940,255.40-11,910,383.10-7,208,047.80

Finding the Fourth Proportional to 7,940,255.40, 11,910,383.10 and 7,208,047.80

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Solution

The fourth proportional to 7,940,255.40, 11,910,383.10 and 7,208,047.80 is: 10,812,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940,255.40 : 11,910,383.10 = 7,208,047.80 : x
  2. Step 2: Convert to fraction form
    7,940,255.40/11,910,383.10 = 7,208,047.80/x
  3. Step 3: Cross multiply
    7,940,255.40x = 11,910,383.10 × 7,208,047.80
  4. Step 4: Simplify right side
    7,940,255.40x = 85,850,610,701,112.17
  5. Step 5: Solve for x
    x = 85,850,610,701,112.17/7,940,255.40
  6. Step 6: Final answer
    x = 10,812,071.70

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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.