Home / 290,463,615.89-400,828,121.11-158,301,780.24

Finding the Fourth Proportional to 290,463,615.89, 400,828,121.11 and 158,301,780.24

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Solution

The fourth proportional to 290,463,615.89, 400,828,121.11 and 158,301,780.24 is: 218,450,097.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,463,615.89 : 400,828,121.11 = 158,301,780.24 : x
  2. Step 2: Convert to fraction form
    290,463,615.89/400,828,121.11 = 158,301,780.24/x
  3. Step 3: Cross multiply
    290,463,615.89x = 400,828,121.11 × 158,301,780.24
  4. Step 4: Simplify right side
    290,463,615.89x = 63,451,805,142,324,360
  5. Step 5: Solve for x
    x = 63,451,805,142,324,360/290,463,615.89
  6. Step 6: Final answer
    x = 218,450,097.26

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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.