Home / 298,610,642-448,092,322.68-126,076,287.44

Finding the Fourth Proportional to 298,610,642, 448,092,322.68 and 126,076,287.44

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Solution

The fourth proportional to 298,610,642, 448,092,322.68 and 126,076,287.44 is: 189,188,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,610,642 : 448,092,322.68 = 126,076,287.44 : x
  2. Step 2: Convert to fraction form
    298,610,642/448,092,322.68 = 126,076,287.44/x
  3. Step 3: Cross multiply
    298,610,642x = 448,092,322.68 × 126,076,287.44
  4. Step 4: Simplify right side
    298,610,642x = 56,493,816,473,860,912
  5. Step 5: Solve for x
    x = 56,493,816,473,860,912/298,610,642
  6. Step 6: Final answer
    x = 189,188,891.91

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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.