Home / 721,170,085.70-1,081,755,128.55-449,072,293.70

Finding the Fourth Proportional to 721,170,085.70, 1,081,755,128.55 and 449,072,293.70

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Solution

The fourth proportional to 721,170,085.70, 1,081,755,128.55 and 449,072,293.70 is: 673,608,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,170,085.70 : 1,081,755,128.55 = 449,072,293.70 : x
  2. Step 2: Convert to fraction form
    721,170,085.70/1,081,755,128.55 = 449,072,293.70/x
  3. Step 3: Cross multiply
    721,170,085.70x = 1,081,755,128.55 × 449,072,293.70
  4. Step 4: Simplify right side
    721,170,085.70x = 485,786,256,799,686,848
  5. Step 5: Solve for x
    x = 485,786,256,799,686,848/721,170,085.70
  6. Step 6: Final answer
    x = 673,608,440.55

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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.