Home / 112,015,796.16-154,479,069.19-76,784,800.80

Finding the Fourth Proportional to 112,015,796.16, 154,479,069.19 and 76,784,800.80

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Solution

The fourth proportional to 112,015,796.16, 154,479,069.19 and 76,784,800.80 is: 105,892,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015,796.16 : 154,479,069.19 = 76,784,800.80 : x
  2. Step 2: Convert to fraction form
    112,015,796.16/154,479,069.19 = 76,784,800.80/x
  3. Step 3: Cross multiply
    112,015,796.16x = 154,479,069.19 × 76,784,800.80
  4. Step 4: Simplify right side
    112,015,796.16x = 11,861,644,555,139,644
  5. Step 5: Solve for x
    x = 11,861,644,555,139,644/112,015,796.16
  6. Step 6: Final answer
    x = 105,892,605.88

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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.