Home / 826,489,516.68-1,140,555,553.83-455,211,548.06

Finding the Fourth Proportional to 826,489,516.68, 1,140,555,553.83 and 455,211,548.06

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Solution

The fourth proportional to 826,489,516.68, 1,140,555,553.83 and 455,211,548.06 is: 628,191,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,489,516.68 : 1,140,555,553.83 = 455,211,548.06 : x
  2. Step 2: Convert to fraction form
    826,489,516.68/1,140,555,553.83 = 455,211,548.06/x
  3. Step 3: Cross multiply
    826,489,516.68x = 1,140,555,553.83 × 455,211,548.06
  4. Step 4: Simplify right side
    826,489,516.68x = 519,194,059,301,682,176
  5. Step 5: Solve for x
    x = 519,194,059,301,682,176/826,489,516.68
  6. Step 6: Final answer
    x = 628,191,947.78

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.