Home / 21,843,238.40-32,789,740.80-12,872,844.80

Finding the Fourth Proportional to 21,843,238.40, 32,789,740.80 and 12,872,844.80

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Solution

The fourth proportional to 21,843,238.40, 32,789,740.80 and 12,872,844.80 is: 19,323,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843,238.40 : 32,789,740.80 = 12,872,844.80 : x
  2. Step 2: Convert to fraction form
    21,843,238.40/32,789,740.80 = 12,872,844.80/x
  3. Step 3: Cross multiply
    21,843,238.40x = 32,789,740.80 × 12,872,844.80
  4. Step 4: Simplify right side
    21,843,238.40x = 422,097,244,350,627.88
  5. Step 5: Solve for x
    x = 422,097,244,350,627.88/21,843,238.40
  6. Step 6: Final answer
    x = 19,323,931.58

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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.