Home / 13,305,943.80-19,958,915.70-12,783,396.60

Finding the Fourth Proportional to 13,305,943.80, 19,958,915.70 and 12,783,396.60

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Solution

The fourth proportional to 13,305,943.80, 19,958,915.70 and 12,783,396.60 is: 19,175,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305,943.80 : 19,958,915.70 = 12,783,396.60 : x
  2. Step 2: Convert to fraction form
    13,305,943.80/19,958,915.70 = 12,783,396.60/x
  3. Step 3: Cross multiply
    13,305,943.80x = 19,958,915.70 × 12,783,396.60
  4. Step 4: Simplify right side
    13,305,943.80x = 255,142,735,099,066.59
  5. Step 5: Solve for x
    x = 255,142,735,099,066.59/13,305,943.80
  6. Step 6: Final answer
    x = 19,175,094.90

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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.