Home / 151,010,313.66-208,489,976.73-103,405,230.18

Finding the Fourth Proportional to 151,010,313.66, 208,489,976.73 and 103,405,230.18

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Solution

The fourth proportional to 151,010,313.66, 208,489,976.73 and 103,405,230.18 is: 142,764,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,010,313.66 : 208,489,976.73 = 103,405,230.18 : x
  2. Step 2: Convert to fraction form
    151,010,313.66/208,489,976.73 = 103,405,230.18/x
  3. Step 3: Cross multiply
    151,010,313.66x = 208,489,976.73 × 103,405,230.18
  4. Step 4: Simplify right side
    151,010,313.66x = 21,558,954,033,988,496
  5. Step 5: Solve for x
    x = 21,558,954,033,988,496/151,010,313.66
  6. Step 6: Final answer
    x = 142,764,778.85

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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.