Home / 1,010,656,857.80-1,515,985,286.70-617,815,670.60

Finding the Fourth Proportional to 1,010,656,857.80, 1,515,985,286.70 and 617,815,670.60

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Solution

The fourth proportional to 1,010,656,857.80, 1,515,985,286.70 and 617,815,670.60 is: 926,723,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,656,857.80 : 1,515,985,286.70 = 617,815,670.60 : x
  2. Step 2: Convert to fraction form
    1,010,656,857.80/1,515,985,286.70 = 617,815,670.60/x
  3. Step 3: Cross multiply
    1,010,656,857.80x = 1,515,985,286.70 × 617,815,670.60
  4. Step 4: Simplify right side
    1,010,656,857.80x = 936,599,466,522,293,888
  5. Step 5: Solve for x
    x = 936,599,466,522,293,888/1,010,656,857.80
  6. Step 6: Final answer
    x = 926,723,505.90

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.