Home / 20,718,742.10-31,080,949.42-7,068,223.48

Finding the Fourth Proportional to 20,718,742.10, 31,080,949.42 and 7,068,223.48

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Solution

The fourth proportional to 20,718,742.10, 31,080,949.42 and 7,068,223.48 is: 10,603,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,742.10 : 31,080,949.42 = 7,068,223.48 : x
  2. Step 2: Convert to fraction form
    20,718,742.10/31,080,949.42 = 7,068,223.48/x
  3. Step 3: Cross multiply
    20,718,742.10x = 31,080,949.42 × 7,068,223.48
  4. Step 4: Simplify right side
    20,718,742.10x = 219,687,096,471,136.41
  5. Step 5: Solve for x
    x = 219,687,096,471,136.41/20,718,742.10
  6. Step 6: Final answer
    x = 10,603,302.82

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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.