Home / 77,215,817.58-115,837,965.41-25,403,336.30

Finding the Fourth Proportional to 77,215,817.58, 115,837,965.41 and 25,403,336.30

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Solution

The fourth proportional to 77,215,817.58, 115,837,965.41 and 25,403,336.30 is: 38,109,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,215,817.58 : 115,837,965.41 = 25,403,336.30 : x
  2. Step 2: Convert to fraction form
    77,215,817.58/115,837,965.41 = 25,403,336.30/x
  3. Step 3: Cross multiply
    77,215,817.58x = 115,837,965.41 × 25,403,336.30
  4. Step 4: Simplify right side
    77,215,817.58x = 2,942,670,791,617,997.50
  5. Step 5: Solve for x
    x = 2,942,670,791,617,997.50/77,215,817.58
  6. Step 6: Final answer
    x = 38,109,688.97

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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.