Home / 645,858,278,999.70-968,787,418,499.55-645,858,278,999.70

Finding the Fourth Proportional to 645,858,278,999.70, 968,787,418,499.55 and 645,858,278,999.70

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Solution

The fourth proportional to 645,858,278,999.70, 968,787,418,499.55 and 645,858,278,999.70 is: 968,787,418,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,858,278,999.70 : 968,787,418,499.55 = 645,858,278,999.70 : x
  2. Step 2: Convert to fraction form
    645,858,278,999.70/968,787,418,499.55 = 645,858,278,999.70/x
  3. Step 3: Cross multiply
    645,858,278,999.70x = 968,787,418,499.55 × 645,858,278,999.70
  4. Step 4: Simplify right side
    645,858,278,999.70x = 625,699,374,828,681,514,975,232
  5. Step 5: Solve for x
    x = 625,699,374,828,681,514,975,232/645,858,278,999.70
  6. Step 6: Final answer
    x = 968,787,418,499.55

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Double scale
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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.