Home / 21,843,330.40-32,789,878.80-12,872,936.80

Finding the Fourth Proportional to 21,843,330.40, 32,789,878.80 and 12,872,936.80

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Solution

The fourth proportional to 21,843,330.40, 32,789,878.80 and 12,872,936.80 is: 19,324,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843,330.40 : 32,789,878.80 = 12,872,936.80 : x
  2. Step 2: Convert to fraction form
    21,843,330.40/32,789,878.80 = 12,872,936.80/x
  3. Step 3: Cross multiply
    21,843,330.40x = 32,789,878.80 × 12,872,936.80
  4. Step 4: Simplify right side
    21,843,330.40x = 422,102,037,472,059.88
  5. Step 5: Solve for x
    x = 422,102,037,472,059.88/21,843,330.40
  6. Step 6: Final answer
    x = 19,324,069.62

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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.