Home / 131,172,823.80-196,759,235.70-121,319,076.60

Finding the Fourth Proportional to 131,172,823.80, 196,759,235.70 and 121,319,076.60

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Solution

The fourth proportional to 131,172,823.80, 196,759,235.70 and 121,319,076.60 is: 181,978,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,172,823.80 : 196,759,235.70 = 121,319,076.60 : x
  2. Step 2: Convert to fraction form
    131,172,823.80/196,759,235.70 = 121,319,076.60/x
  3. Step 3: Cross multiply
    131,172,823.80x = 196,759,235.70 × 121,319,076.60
  4. Step 4: Simplify right side
    131,172,823.80x = 23,870,648,787,645,752
  5. Step 5: Solve for x
    x = 23,870,648,787,645,752/131,172,823.80
  6. Step 6: Final answer
    x = 181,978,614.90

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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.