Home / 12,840,845.13-17,720,300.54-6,960,456.61

Finding the Fourth Proportional to 12,840,845.13, 17,720,300.54 and 6,960,456.61

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Solution

The fourth proportional to 12,840,845.13, 17,720,300.54 and 6,960,456.61 is: 9,605,394.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840,845.13 : 17,720,300.54 = 6,960,456.61 : x
  2. Step 2: Convert to fraction form
    12,840,845.13/17,720,300.54 = 6,960,456.61/x
  3. Step 3: Cross multiply
    12,840,845.13x = 17,720,300.54 × 6,960,456.61
  4. Step 4: Simplify right side
    12,840,845.13x = 123,341,383,097,606.66
  5. Step 5: Solve for x
    x = 123,341,383,097,606.66/12,840,845.13
  6. Step 6: Final answer
    x = 9,605,394.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.