Home / 131,258,115.20-196,887,172.80-82,578,119.60

Finding the Fourth Proportional to 131,258,115.20, 196,887,172.80 and 82,578,119.60

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Solution

The fourth proportional to 131,258,115.20, 196,887,172.80 and 82,578,119.60 is: 123,867,179.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,258,115.20 : 196,887,172.80 = 82,578,119.60 : x
  2. Step 2: Convert to fraction form
    131,258,115.20/196,887,172.80 = 82,578,119.60/x
  3. Step 3: Cross multiply
    131,258,115.20x = 196,887,172.80 × 82,578,119.60
  4. Step 4: Simplify right side
    131,258,115.20x = 16,258,572,503,184,266
  5. Step 5: Solve for x
    x = 16,258,572,503,184,266/131,258,115.20
  6. Step 6: Final answer
    x = 123,867,179.40

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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.