Home / 207,981,595-287,011,092.79-115,160,109.94

Finding the Fourth Proportional to 207,981,595, 287,011,092.79 and 115,160,109.94

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Solution

The fourth proportional to 207,981,595, 287,011,092.79 and 115,160,109.94 is: 158,919,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,981,595 : 287,011,092.79 = 115,160,109.94 : x
  2. Step 2: Convert to fraction form
    207,981,595/287,011,092.79 = 115,160,109.94/x
  3. Step 3: Cross multiply
    207,981,595x = 287,011,092.79 × 115,160,109.94
  4. Step 4: Simplify right side
    207,981,595x = 33,052,228,999,695,944
  5. Step 5: Solve for x
    x = 33,052,228,999,695,944/207,981,595
  6. Step 6: Final answer
    x = 158,919,009.15

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