Home / 191,619,015.45-287,428,523.18-68,856,144.45

Finding the Fourth Proportional to 191,619,015.45, 287,428,523.18 and 68,856,144.45

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Solution

The fourth proportional to 191,619,015.45, 287,428,523.18 and 68,856,144.45 is: 103,284,216.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,619,015.45 : 287,428,523.18 = 68,856,144.45 : x
  2. Step 2: Convert to fraction form
    191,619,015.45/287,428,523.18 = 68,856,144.45/x
  3. Step 3: Cross multiply
    191,619,015.45x = 287,428,523.18 × 68,856,144.45
  4. Step 4: Simplify right side
    191,619,015.45x = 19,791,219,910,787,976
  5. Step 5: Solve for x
    x = 19,791,219,910,787,976/191,619,015.45
  6. Step 6: Final answer
    x = 103,284,216.68

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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.