Home / 299,619,009.20-449,428,513.80-217,351,942.40

Finding the Fourth Proportional to 299,619,009.20, 449,428,513.80 and 217,351,942.40

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Solution

The fourth proportional to 299,619,009.20, 449,428,513.80 and 217,351,942.40 is: 326,027,913.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,619,009.20 : 449,428,513.80 = 217,351,942.40 : x
  2. Step 2: Convert to fraction form
    299,619,009.20/449,428,513.80 = 217,351,942.40/x
  3. Step 3: Cross multiply
    299,619,009.20x = 449,428,513.80 × 217,351,942.40
  4. Step 4: Simplify right side
    299,619,009.20x = 97,684,160,444,375,216
  5. Step 5: Solve for x
    x = 97,684,160,444,375,216/299,619,009.20
  6. Step 6: Final answer
    x = 326,027,913.60

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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.