Home / 509,965,718.40-764,948,577.60-164,954,221.20

Finding the Fourth Proportional to 509,965,718.40, 764,948,577.60 and 164,954,221.20

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Solution

The fourth proportional to 509,965,718.40, 764,948,577.60 and 164,954,221.20 is: 247,431,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,965,718.40 : 764,948,577.60 = 164,954,221.20 : x
  2. Step 2: Convert to fraction form
    509,965,718.40/764,948,577.60 = 164,954,221.20/x
  3. Step 3: Cross multiply
    509,965,718.40x = 764,948,577.60 × 164,954,221.20
  4. Step 4: Simplify right side
    509,965,718.40x = 126,181,496,876,055,760
  5. Step 5: Solve for x
    x = 126,181,496,876,055,760/509,965,718.40
  6. Step 6: Final answer
    x = 247,431,331.80

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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.