Home / 663,296,893.20-994,945,339.80-318,072,819.60

Finding the Fourth Proportional to 663,296,893.20, 994,945,339.80 and 318,072,819.60

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Solution

The fourth proportional to 663,296,893.20, 994,945,339.80 and 318,072,819.60 is: 477,109,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,296,893.20 : 994,945,339.80 = 318,072,819.60 : x
  2. Step 2: Convert to fraction form
    663,296,893.20/994,945,339.80 = 318,072,819.60/x
  3. Step 3: Cross multiply
    663,296,893.20x = 994,945,339.80 × 318,072,819.60
  4. Step 4: Simplify right side
    663,296,893.20x = 316,465,069,578,066,112
  5. Step 5: Solve for x
    x = 316,465,069,578,066,112/663,296,893.20
  6. Step 6: Final answer
    x = 477,109,229.40

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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.