Home / 7,991,783,200.80-11,987,674,801.20-7,869,339,194.40

Finding the Fourth Proportional to 7,991,783,200.80, 11,987,674,801.20 and 7,869,339,194.40

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Solution

The fourth proportional to 7,991,783,200.80, 11,987,674,801.20 and 7,869,339,194.40 is: 11,804,008,791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991,783,200.80 : 11,987,674,801.20 = 7,869,339,194.40 : x
  2. Step 2: Convert to fraction form
    7,991,783,200.80/11,987,674,801.20 = 7,869,339,194.40/x
  3. Step 3: Cross multiply
    7,991,783,200.80x = 11,987,674,801.20 × 7,869,339,194.40
  4. Step 4: Simplify right side
    7,991,783,200.80x = 94,335,079,162,804,387,840
  5. Step 5: Solve for x
    x = 94,335,079,162,804,387,840/7,991,783,200.80
  6. Step 6: Final answer
    x = 11,804,008,791.60

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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.