Home / 721,170,095.20-1,081,755,142.80-449,072,303.20

Finding the Fourth Proportional to 721,170,095.20, 1,081,755,142.80 and 449,072,303.20

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Solution

The fourth proportional to 721,170,095.20, 1,081,755,142.80 and 449,072,303.20 is: 673,608,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,170,095.20 : 1,081,755,142.80 = 449,072,303.20 : x
  2. Step 2: Convert to fraction form
    721,170,095.20/1,081,755,142.80 = 449,072,303.20/x
  3. Step 3: Cross multiply
    721,170,095.20x = 1,081,755,142.80 × 449,072,303.20
  4. Step 4: Simplify right side
    721,170,095.20x = 485,786,273,475,640,832
  5. Step 5: Solve for x
    x = 485,786,273,475,640,832/721,170,095.20
  6. Step 6: Final answer
    x = 673,608,454.80

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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.