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Finding the Fourth Proportional to 299,548,867.60, 449,323,301.40 and 245,129,309.20

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Solution

The fourth proportional to 299,548,867.60, 449,323,301.40 and 245,129,309.20 is: 367,693,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,548,867.60 : 449,323,301.40 = 245,129,309.20 : x
  2. Step 2: Convert to fraction form
    299,548,867.60/449,323,301.40 = 245,129,309.20/x
  3. Step 3: Cross multiply
    299,548,867.60x = 449,323,301.40 × 245,129,309.20
  4. Step 4: Simplify right side
    299,548,867.60x = 110,142,310,479,645,376
  5. Step 5: Solve for x
    x = 110,142,310,479,645,376/299,548,867.60
  6. Step 6: Final answer
    x = 367,693,963.80

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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.