Home / 19,725,970.43-27,222,679.91-11,024,142.80

Finding the Fourth Proportional to 19,725,970.43, 27,222,679.91 and 11,024,142.80

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Solution

The fourth proportional to 19,725,970.43, 27,222,679.91 and 11,024,142.80 is: 15,213,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725,970.43 : 27,222,679.91 = 11,024,142.80 : x
  2. Step 2: Convert to fraction form
    19,725,970.43/27,222,679.91 = 11,024,142.80/x
  3. Step 3: Cross multiply
    19,725,970.43x = 27,222,679.91 × 11,024,142.80
  4. Step 4: Simplify right side
    19,725,970.43x = 300,106,710,617,978.12
  5. Step 5: Solve for x
    x = 300,106,710,617,978.12/19,725,970.43
  6. Step 6: Final answer
    x = 15,213,786.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.