Home / 14,529,891.20-21,799,502.40-6,439,740.80

Finding the Fourth Proportional to 14,529,891.20, 21,799,502.40 and 6,439,740.80

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Solution

The fourth proportional to 14,529,891.20, 21,799,502.40 and 6,439,740.80 is: 9,661,679.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,529,891.20 : 21,799,502.40 = 6,439,740.80 : x
  2. Step 2: Convert to fraction form
    14,529,891.20/21,799,502.40 = 6,439,740.80/x
  3. Step 3: Cross multiply
    14,529,891.20x = 21,799,502.40 × 6,439,740.80
  4. Step 4: Simplify right side
    14,529,891.20x = 140,383,145,024,977.91
  5. Step 5: Solve for x
    x = 140,383,145,024,977.91/14,529,891.20
  6. Step 6: Final answer
    x = 9,661,679.02

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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.