Home / 14,120,968.45-21,171,782.82-7,191,033.43

Finding the Fourth Proportional to 14,120,968.45, 21,171,782.82 and 7,191,033.43

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Solution

The fourth proportional to 14,120,968.45, 21,171,782.82 and 7,191,033.43 is: 10,781,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120,968.45 : 21,171,782.82 = 7,191,033.43 : x
  2. Step 2: Convert to fraction form
    14,120,968.45/21,171,782.82 = 7,191,033.43/x
  3. Step 3: Cross multiply
    14,120,968.45x = 21,171,782.82 × 7,191,033.43
  4. Step 4: Simplify right side
    14,120,968.45x = 152,246,997,889,505.59
  5. Step 5: Solve for x
    x = 152,246,997,889,505.59/14,120,968.45
  6. Step 6: Final answer
    x = 10,781,625.81

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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.