Home / 300,822,748.80-451,234,123.20-85,384,003.20

Finding the Fourth Proportional to 300,822,748.80, 451,234,123.20 and 85,384,003.20

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Solution

The fourth proportional to 300,822,748.80, 451,234,123.20 and 85,384,003.20 is: 128,076,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,822,748.80 : 451,234,123.20 = 85,384,003.20 : x
  2. Step 2: Convert to fraction form
    300,822,748.80/451,234,123.20 = 85,384,003.20/x
  3. Step 3: Cross multiply
    300,822,748.80x = 451,234,123.20 × 85,384,003.20
  4. Step 4: Simplify right side
    300,822,748.80x = 38,528,175,819,257,992
  5. Step 5: Solve for x
    x = 38,528,175,819,257,992/300,822,748.80
  6. Step 6: Final answer
    x = 128,076,004.80

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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.