Home / 14,129,620.40-21,152,440.20-8,446,919.60

Finding the Fourth Proportional to 14,129,620.40, 21,152,440.20 and 8,446,919.60

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Solution

The fourth proportional to 14,129,620.40, 21,152,440.20 and 8,446,919.60 is: 12,645,276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129,620.40 : 21,152,440.20 = 8,446,919.60 : x
  2. Step 2: Convert to fraction form
    14,129,620.40/21,152,440.20 = 8,446,919.60/x
  3. Step 3: Cross multiply
    14,129,620.40x = 21,152,440.20 × 8,446,919.60
  4. Step 4: Simplify right side
    14,129,620.40x = 178,672,961,713,207.91
  5. Step 5: Solve for x
    x = 178,672,961,713,207.91/14,129,620.40
  6. Step 6: Final answer
    x = 12,645,276.85

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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.