Home / 7,170,082,721.90-9,894,723,687.84-3,954,920,608.60

Finding the Fourth Proportional to 7,170,082,721.90, 9,894,723,687.84 and 3,954,920,608.60

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Solution

The fourth proportional to 7,170,082,721.90, 9,894,723,687.84 and 3,954,920,608.60 is: 5,457,795,697.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170,082,721.90 : 9,894,723,687.84 = 3,954,920,608.60 : x
  2. Step 2: Convert to fraction form
    7,170,082,721.90/9,894,723,687.84 = 3,954,920,608.60/x
  3. Step 3: Cross multiply
    7,170,082,721.90x = 9,894,723,687.84 × 3,954,920,608.60
  4. Step 4: Simplify right side
    7,170,082,721.90x = 39,132,846,629,441,011,712
  5. Step 5: Solve for x
    x = 39,132,846,629,441,011,712/7,170,082,721.90
  6. Step 6: Final answer
    x = 5,457,795,697.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.