Home / 252,058,643.20-378,087,964.80-161,284,729.60

Finding the Fourth Proportional to 252,058,643.20, 378,087,964.80 and 161,284,729.60

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Solution

The fourth proportional to 252,058,643.20, 378,087,964.80 and 161,284,729.60 is: 241,927,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,058,643.20 : 378,087,964.80 = 161,284,729.60 : x
  2. Step 2: Convert to fraction form
    252,058,643.20/378,087,964.80 = 161,284,729.60/x
  3. Step 3: Cross multiply
    252,058,643.20x = 378,087,964.80 × 161,284,729.60
  4. Step 4: Simplify right side
    252,058,643.20x = 60,979,815,167,782,320
  5. Step 5: Solve for x
    x = 60,979,815,167,782,320/252,058,643.20
  6. Step 6: Final answer
    x = 241,927,094.40

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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.