Home / 121,392,121.20-182,088,181.80-107,362,078.80

Finding the Fourth Proportional to 121,392,121.20, 182,088,181.80 and 107,362,078.80

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Solution

The fourth proportional to 121,392,121.20, 182,088,181.80 and 107,362,078.80 is: 161,043,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,392,121.20 : 182,088,181.80 = 107,362,078.80 : x
  2. Step 2: Convert to fraction form
    121,392,121.20/182,088,181.80 = 107,362,078.80/x
  3. Step 3: Cross multiply
    121,392,121.20x = 182,088,181.80 × 107,362,078.80
  4. Step 4: Simplify right side
    121,392,121.20x = 19,549,365,722,960,328
  5. Step 5: Solve for x
    x = 19,549,365,722,960,328/121,392,121.20
  6. Step 6: Final answer
    x = 161,043,118.20

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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.