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Finding the Fourth Proportional to 11,671,102.80, 17,464,663.80 and 7,891,966.80

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Solution

The fourth proportional to 11,671,102.80, 17,464,663.80 and 7,891,966.80 is: 11,809,556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671,102.80 : 17,464,663.80 = 7,891,966.80 : x
  2. Step 2: Convert to fraction form
    11,671,102.80/17,464,663.80 = 7,891,966.80/x
  3. Step 3: Cross multiply
    11,671,102.80x = 17,464,663.80 × 7,891,966.80
  4. Step 4: Simplify right side
    11,671,102.80x = 137,830,546,882,761.84
  5. Step 5: Solve for x
    x = 137,830,546,882,761.84/11,671,102.80
  6. Step 6: Final answer
    x = 11,809,556.41

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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.