Home / 272,493,142.40-408,739,713.60-245,619,286.40

Finding the Fourth Proportional to 272,493,142.40, 408,739,713.60 and 245,619,286.40

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Solution

The fourth proportional to 272,493,142.40, 408,739,713.60 and 245,619,286.40 is: 368,428,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,493,142.40 : 408,739,713.60 = 245,619,286.40 : x
  2. Step 2: Convert to fraction form
    272,493,142.40/408,739,713.60 = 245,619,286.40/x
  3. Step 3: Cross multiply
    272,493,142.40x = 408,739,713.60 × 245,619,286.40
  4. Step 4: Simplify right side
    272,493,142.40x = 100,394,356,777,772,384
  5. Step 5: Solve for x
    x = 100,394,356,777,772,384/272,493,142.40
  6. Step 6: Final answer
    x = 368,428,929.60

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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.