Home / 123,288,797.77-170,074,036.70-76,230,828.61

Finding the Fourth Proportional to 123,288,797.77, 170,074,036.70 and 76,230,828.61

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Solution

The fourth proportional to 123,288,797.77, 170,074,036.70 and 76,230,828.61 is: 105,158,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,288,797.77 : 170,074,036.70 = 76,230,828.61 : x
  2. Step 2: Convert to fraction form
    123,288,797.77/170,074,036.70 = 76,230,828.61/x
  3. Step 3: Cross multiply
    123,288,797.77x = 170,074,036.70 × 76,230,828.61
  4. Step 4: Simplify right side
    123,288,797.77x = 12,964,884,741,882,210
  5. Step 5: Solve for x
    x = 12,964,884,741,882,210/123,288,797.77
  6. Step 6: Final answer
    x = 105,158,659.80

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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.