Home / 20,718,749.64-31,080,960.66-7,068,230.98

Finding the Fourth Proportional to 20,718,749.64, 31,080,960.66 and 7,068,230.98

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Solution

The fourth proportional to 20,718,749.64, 31,080,960.66 and 7,068,230.98 is: 10,603,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,749.64 : 31,080,960.66 = 7,068,230.98 : x
  2. Step 2: Convert to fraction form
    20,718,749.64/31,080,960.66 = 7,068,230.98/x
  3. Step 3: Cross multiply
    20,718,749.64x = 31,080,960.66 × 7,068,230.98
  4. Step 4: Simplify right side
    20,718,749.64x = 219,687,409,025,173.25
  5. Step 5: Solve for x
    x = 219,687,409,025,173.25/20,718,749.64
  6. Step 6: Final answer
    x = 10,603,314.04

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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.