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Finding the Fourth Proportional to 663,195,254.40, 994,783,550.40 and 299,689,027.20

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Solution

The fourth proportional to 663,195,254.40, 994,783,550.40 and 299,689,027.20 is: 449,529,324.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,195,254.40 : 994,783,550.40 = 299,689,027.20 : x
  2. Step 2: Convert to fraction form
    663,195,254.40/994,783,550.40 = 299,689,027.20/x
  3. Step 3: Cross multiply
    663,195,254.40x = 994,783,550.40 × 299,689,027.20
  4. Step 4: Simplify right side
    663,195,254.40x = 298,125,714,493,938,176
  5. Step 5: Solve for x
    x = 298,125,714,493,938,176/663,195,254.40
  6. Step 6: Final answer
    x = 449,529,324.16

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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.