Home / 131,232,138.60-196,848,207.90-80,213,802.60

Finding the Fourth Proportional to 131,232,138.60, 196,848,207.90 and 80,213,802.60

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Solution

The fourth proportional to 131,232,138.60, 196,848,207.90 and 80,213,802.60 is: 120,320,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,232,138.60 : 196,848,207.90 = 80,213,802.60 : x
  2. Step 2: Convert to fraction form
    131,232,138.60/196,848,207.90 = 80,213,802.60/x
  3. Step 3: Cross multiply
    131,232,138.60x = 196,848,207.90 × 80,213,802.60
  4. Step 4: Simplify right side
    131,232,138.60x = 15,789,943,290,654,360
  5. Step 5: Solve for x
    x = 15,789,943,290,654,360/131,232,138.60
  6. Step 6: Final answer
    x = 120,320,703.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.