Home / 7,920,881,517.60-11,881,322,276.40-6,642,393,903.90

Finding the Fourth Proportional to 7,920,881,517.60, 11,881,322,276.40 and 6,642,393,903.90

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Solution

The fourth proportional to 7,920,881,517.60, 11,881,322,276.40 and 6,642,393,903.90 is: 9,963,590,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,881,517.60 : 11,881,322,276.40 = 6,642,393,903.90 : x
  2. Step 2: Convert to fraction form
    7,920,881,517.60/11,881,322,276.40 = 6,642,393,903.90/x
  3. Step 3: Cross multiply
    7,920,881,517.60x = 11,881,322,276.40 × 6,642,393,903.90
  4. Step 4: Simplify right side
    7,920,881,517.60x = 78,920,422,659,030,630,400
  5. Step 5: Solve for x
    x = 78,920,422,659,030,630,400/7,920,881,517.60
  6. Step 6: Final answer
    x = 9,963,590,855.85

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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.