Home / 81,434,992,830.60-122,152,489,245.90-75,557,680,523.40

Finding the Fourth Proportional to 81,434,992,830.60, 122,152,489,245.90 and 75,557,680,523.40

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Solution

The fourth proportional to 81,434,992,830.60, 122,152,489,245.90 and 75,557,680,523.40 is: 113,336,520,785.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,434,992,830.60 : 122,152,489,245.90 = 75,557,680,523.40 : x
  2. Step 2: Convert to fraction form
    81,434,992,830.60/122,152,489,245.90 = 75,557,680,523.40/x
  3. Step 3: Cross multiply
    81,434,992,830.60x = 122,152,489,245.90 × 75,557,680,523.40
  4. Step 4: Simplify right side
    81,434,992,830.60x = 9,229,558,757,579,765,579,776
  5. Step 5: Solve for x
    x = 9,229,558,757,579,765,579,776/81,434,992,830.60
  6. Step 6: Final answer
    x = 113,336,520,785.10

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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.