Home / 356,358,112,165.43-491,783,515,135.54-193,787,266,178.77

Finding the Fourth Proportional to 356,358,112,165.43, 491,783,515,135.54 and 193,787,266,178.77

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Solution

The fourth proportional to 356,358,112,165.43, 491,783,515,135.54 and 193,787,266,178.77 is: 267,431,495,724.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,358,112,165.43 : 491,783,515,135.54 = 193,787,266,178.77 : x
  2. Step 2: Convert to fraction form
    356,358,112,165.43/491,783,515,135.54 = 193,787,266,178.77/x
  3. Step 3: Cross multiply
    356,358,112,165.43x = 491,783,515,135.54 × 193,787,266,178.77
  4. Step 4: Simplify right side
    356,358,112,165.43x = 95,301,382,949,902,043,054,080
  5. Step 5: Solve for x
    x = 95,301,382,949,902,043,054,080/356,358,112,165.43
  6. Step 6: Final answer
    x = 267,431,495,724.34

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Double scale
Find fourth proportional to 356,358,112,166.43, 491,783,515,136.92 and 193,787,266,179.77
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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.