Home / 20,762,949.10-31,146,756.45-6,385,902.70

Finding the Fourth Proportional to 20,762,949.10, 31,146,756.45 and 6,385,902.70

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Solution

The fourth proportional to 20,762,949.10, 31,146,756.45 and 6,385,902.70 is: 9,579,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,949.10 : 31,146,756.45 = 6,385,902.70 : x
  2. Step 2: Convert to fraction form
    20,762,949.10/31,146,756.45 = 6,385,902.70/x
  3. Step 3: Cross multiply
    20,762,949.10x = 31,146,756.45 × 6,385,902.70
  4. Step 4: Simplify right side
    20,762,949.10x = 198,900,156,110,297.41
  5. Step 5: Solve for x
    x = 198,900,156,110,297.41/20,762,949.10
  6. Step 6: Final answer
    x = 9,579,571.53

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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.