Home / 77,191,981.74-115,753,982.49-36,263,053.11

Finding the Fourth Proportional to 77,191,981.74, 115,753,982.49 and 36,263,053.11

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Solution

The fourth proportional to 77,191,981.74, 115,753,982.49 and 36,263,053.11 is: 54,378,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,191,981.74 : 115,753,982.49 = 36,263,053.11 : x
  2. Step 2: Convert to fraction form
    77,191,981.74/115,753,982.49 = 36,263,053.11/x
  3. Step 3: Cross multiply
    77,191,981.74x = 115,753,982.49 × 36,263,053.11
  4. Step 4: Simplify right side
    77,191,981.74x = 4,197,592,814,728,880
  5. Step 5: Solve for x
    x = 4,197,592,814,728,880/77,191,981.74
  6. Step 6: Final answer
    x = 54,378,611.87

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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.