Home / 13,208,840.20-19,813,260.30-11,933,381.80

Finding the Fourth Proportional to 13,208,840.20, 19,813,260.30 and 11,933,381.80

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Solution

The fourth proportional to 13,208,840.20, 19,813,260.30 and 11,933,381.80 is: 17,900,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208,840.20 : 19,813,260.30 = 11,933,381.80 : x
  2. Step 2: Convert to fraction form
    13,208,840.20/19,813,260.30 = 11,933,381.80/x
  3. Step 3: Cross multiply
    13,208,840.20x = 19,813,260.30 × 11,933,381.80
  4. Step 4: Simplify right side
    13,208,840.20x = 236,439,199,862,682.56
  5. Step 5: Solve for x
    x = 236,439,199,862,682.56/13,208,840.20
  6. Step 6: Final answer
    x = 17,900,072.70

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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.