Home / 299,336,740.80-449,173,072.80-126,784,190.40

Finding the Fourth Proportional to 299,336,740.80, 449,173,072.80 and 126,784,190.40

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Solution

The fourth proportional to 299,336,740.80, 449,173,072.80 and 126,784,190.40 is: 190,247,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,336,740.80 : 449,173,072.80 = 126,784,190.40 : x
  2. Step 2: Convert to fraction form
    299,336,740.80/449,173,072.80 = 126,784,190.40/x
  3. Step 3: Cross multiply
    299,336,740.80x = 449,173,072.80 × 126,784,190.40
  4. Step 4: Simplify right side
    299,336,740.80x = 56,948,044,384,428,264
  5. Step 5: Solve for x
    x = 56,948,044,384,428,264/299,336,740.80
  6. Step 6: Final answer
    x = 190,247,425.80

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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.