Home / 643,858,232.10-965,787,348.15-540,546,101.70

Finding the Fourth Proportional to 643,858,232.10, 965,787,348.15 and 540,546,101.70

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Solution

The fourth proportional to 643,858,232.10, 965,787,348.15 and 540,546,101.70 is: 810,819,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,858,232.10 : 965,787,348.15 = 540,546,101.70 : x
  2. Step 2: Convert to fraction form
    643,858,232.10/965,787,348.15 = 540,546,101.70/x
  3. Step 3: Cross multiply
    643,858,232.10x = 965,787,348.15 × 540,546,101.70
  4. Step 4: Simplify right side
    643,858,232.10x = 522,052,586,113,663,232
  5. Step 5: Solve for x
    x = 522,052,586,113,663,232/643,858,232.10
  6. Step 6: Final answer
    x = 810,819,152.55

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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.