Home / 125,891,876,272.59-188,784,060,004.67-72,869,508,016.83

Finding the Fourth Proportional to 125,891,876,272.59, 188,784,060,004.67 and 72,869,508,016.83

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Solution

The fourth proportional to 125,891,876,272.59, 188,784,060,004.67 and 72,869,508,016.83 is: 109,273,147,571.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,891,876,272.59 : 188,784,060,004.67 = 72,869,508,016.83 : x
  2. Step 2: Convert to fraction form
    125,891,876,272.59/188,784,060,004.67 = 72,869,508,016.83/x
  3. Step 3: Cross multiply
    125,891,876,272.59x = 188,784,060,004.67 × 72,869,508,016.83
  4. Step 4: Simplify right side
    125,891,876,272.59x = 13,756,601,573,960,016,986,112
  5. Step 5: Solve for x
    x = 13,756,601,573,960,016,986,112/125,891,876,272.59
  6. Step 6: Final answer
    x = 109,273,147,571.28

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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.