Home / 13,900,830.30-20,836,039.05-4,920,759.90

Finding the Fourth Proportional to 13,900,830.30, 20,836,039.05 and 4,920,759.90

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Solution

The fourth proportional to 13,900,830.30, 20,836,039.05 and 4,920,759.90 is: 7,375,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900,830.30 : 20,836,039.05 = 4,920,759.90 : x
  2. Step 2: Convert to fraction form
    13,900,830.30/20,836,039.05 = 4,920,759.90/x
  3. Step 3: Cross multiply
    13,900,830.30x = 20,836,039.05 × 4,920,759.90
  4. Step 4: Simplify right side
    13,900,830.30x = 102,529,145,432,074.11
  5. Step 5: Solve for x
    x = 102,529,145,432,074.11/13,900,830.30
  6. Step 6: Final answer
    x = 7,375,756.93

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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.