Home / 7,920,881,736.60-11,881,322,604.90-6,642,394,122.90

Finding the Fourth Proportional to 7,920,881,736.60, 11,881,322,604.90 and 6,642,394,122.90

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Solution

The fourth proportional to 7,920,881,736.60, 11,881,322,604.90 and 6,642,394,122.90 is: 9,963,591,184.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,881,736.60 : 11,881,322,604.90 = 6,642,394,122.90 : x
  2. Step 2: Convert to fraction form
    7,920,881,736.60/11,881,322,604.90 = 6,642,394,122.90/x
  3. Step 3: Cross multiply
    7,920,881,736.60x = 11,881,322,604.90 × 6,642,394,122.90
  4. Step 4: Simplify right side
    7,920,881,736.60x = 78,920,427,443,066,667,008
  5. Step 5: Solve for x
    x = 78,920,427,443,066,667,008/7,920,881,736.60
  6. Step 6: Final answer
    x = 9,963,591,184.35

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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.