Home / 956,897,805.11-1,320,519,500.78-516,864,657.11

Finding the Fourth Proportional to 956,897,805.11, 1,320,519,500.78 and 516,864,657.11

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Solution

The fourth proportional to 956,897,805.11, 1,320,519,500.78 and 516,864,657.11 is: 713,273,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,897,805.11 : 1,320,519,500.78 = 516,864,657.11 : x
  2. Step 2: Convert to fraction form
    956,897,805.11/1,320,519,500.78 = 516,864,657.11/x
  3. Step 3: Cross multiply
    956,897,805.11x = 1,320,519,500.78 × 516,864,657.11
  4. Step 4: Simplify right side
    956,897,805.11x = 682,529,858,968,536,192
  5. Step 5: Solve for x
    x = 682,529,858,968,536,192/956,897,805.11
  6. Step 6: Final answer
    x = 713,273,512.94

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Double scale
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1.5x scale

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.