Home / 20,718,738.60-31,080,944.16-7,068,219.98

Finding the Fourth Proportional to 20,718,738.60, 31,080,944.16 and 7,068,219.98

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Solution

The fourth proportional to 20,718,738.60, 31,080,944.16 and 7,068,219.98 is: 10,603,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,738.60 : 31,080,944.16 = 7,068,219.98 : x
  2. Step 2: Convert to fraction form
    20,718,738.60/31,080,944.16 = 7,068,219.98/x
  3. Step 3: Cross multiply
    20,718,738.60x = 31,080,944.16 × 7,068,219.98
  4. Step 4: Simplify right side
    20,718,738.60x = 219,686,950,353,571.59
  5. Step 5: Solve for x
    x = 219,686,950,353,571.59/20,718,738.60
  6. Step 6: Final answer
    x = 10,603,297.56

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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.