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Finding the Fourth Proportional to 8,294,664, 12,441,996.16 and 1,990,920

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Solution

The fourth proportional to 8,294,664, 12,441,996.16 and 1,990,920 is: 2,986,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,294,664 : 12,441,996.16 = 1,990,920 : x
  2. Step 2: Convert to fraction form
    8,294,664/12,441,996.16 = 1,990,920/x
  3. Step 3: Cross multiply
    8,294,664x = 12,441,996.16 × 1,990,920
  4. Step 4: Simplify right side
    8,294,664x = 24,771,018,994,867.20
  5. Step 5: Solve for x
    x = 24,771,018,994,867.20/8,294,664
  6. Step 6: Final answer
    x = 2,986,380.04

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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.