Home / 142,279,331.43-196,345,608.44-77,089,235.43

Finding the Fourth Proportional to 142,279,331.43, 196,345,608.44 and 77,089,235.43

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Solution

The fourth proportional to 142,279,331.43, 196,345,608.44 and 77,089,235.43 is: 106,383,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,279,331.43 : 196,345,608.44 = 77,089,235.43 : x
  2. Step 2: Convert to fraction form
    142,279,331.43/196,345,608.44 = 77,089,235.43/x
  3. Step 3: Cross multiply
    142,279,331.43x = 196,345,608.44 × 77,089,235.43
  4. Step 4: Simplify right side
    142,279,331.43x = 15,136,132,834,292,310
  5. Step 5: Solve for x
    x = 15,136,132,834,292,310/142,279,331.43
  6. Step 6: Final answer
    x = 106,383,215.90

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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.