Home / 13,407,879.13-18,501,365.88-7,900,896.49

Finding the Fourth Proportional to 13,407,879.13, 18,501,365.88 and 7,900,896.49

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Solution

The fourth proportional to 13,407,879.13, 18,501,365.88 and 7,900,896.49 is: 10,902,348.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407,879.13 : 18,501,365.88 = 7,900,896.49 : x
  2. Step 2: Convert to fraction form
    13,407,879.13/18,501,365.88 = 7,900,896.49/x
  3. Step 3: Cross multiply
    13,407,879.13x = 18,501,365.88 × 7,900,896.49
  4. Step 4: Simplify right side
    13,407,879.13x = 146,177,376,741,497.75
  5. Step 5: Solve for x
    x = 146,177,376,741,497.75/13,407,879.13
  6. Step 6: Final answer
    x = 10,902,348.93

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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.