Home / 7,920,881,844.60-11,881,322,766.90-6,642,394,230.90

Finding the Fourth Proportional to 7,920,881,844.60, 11,881,322,766.90 and 6,642,394,230.90

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Solution

The fourth proportional to 7,920,881,844.60, 11,881,322,766.90 and 6,642,394,230.90 is: 9,963,591,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,881,844.60 : 11,881,322,766.90 = 6,642,394,230.90 : x
  2. Step 2: Convert to fraction form
    7,920,881,844.60/11,881,322,766.90 = 6,642,394,230.90/x
  3. Step 3: Cross multiply
    7,920,881,844.60x = 11,881,322,766.90 × 6,642,394,230.90
  4. Step 4: Simplify right side
    7,920,881,844.60x = 78,920,429,802,317,381,632
  5. Step 5: Solve for x
    x = 78,920,429,802,317,381,632/7,920,881,844.60
  6. Step 6: Final answer
    x = 9,963,591,346.35

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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.