Home / 131,054,512.80-196,707,740.40-66,431,287.20

Finding the Fourth Proportional to 131,054,512.80, 196,707,740.40 and 66,431,287.20

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Solution

The fourth proportional to 131,054,512.80, 196,707,740.40 and 66,431,287.20 is: 99,710,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,054,512.80 : 196,707,740.40 = 66,431,287.20 : x
  2. Step 2: Convert to fraction form
    131,054,512.80/196,707,740.40 = 66,431,287.20/x
  3. Step 3: Cross multiply
    131,054,512.80x = 196,707,740.40 × 66,431,287.20
  4. Step 4: Simplify right side
    131,054,512.80x = 13,067,548,396,975,444
  5. Step 5: Solve for x
    x = 13,067,548,396,975,444/131,054,512.80
  6. Step 6: Final answer
    x = 99,710,785.37

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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.