Home / 13,008,703.05-17,951,996.16-7,128,480.61

Finding the Fourth Proportional to 13,008,703.05, 17,951,996.16 and 7,128,480.61

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Solution

The fourth proportional to 13,008,703.05, 17,951,996.16 and 7,128,480.61 is: 9,837,295.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008,703.05 : 17,951,996.16 = 7,128,480.61 : x
  2. Step 2: Convert to fraction form
    13,008,703.05/17,951,996.16 = 7,128,480.61/x
  3. Step 3: Cross multiply
    13,008,703.05x = 17,951,996.16 × 7,128,480.61
  4. Step 4: Simplify right side
    13,008,703.05x = 127,970,456,537,354.47
  5. Step 5: Solve for x
    x = 127,970,456,537,354.47/13,008,703.05
  6. Step 6: Final answer
    x = 9,837,295.54

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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.