Home / 21,055,725.60-31,559,968.80-11,962,179.60

Finding the Fourth Proportional to 21,055,725.60, 31,559,968.80 and 11,962,179.60

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Solution

The fourth proportional to 21,055,725.60, 31,559,968.80 and 11,962,179.60 is: 17,929,850.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055,725.60 : 31,559,968.80 = 11,962,179.60 : x
  2. Step 2: Convert to fraction form
    21,055,725.60/31,559,968.80 = 11,962,179.60/x
  3. Step 3: Cross multiply
    21,055,725.60x = 31,559,968.80 × 11,962,179.60
  4. Step 4: Simplify right side
    21,055,725.60x = 377,526,014,955,996.50
  5. Step 5: Solve for x
    x = 377,526,014,955,996.50/21,055,725.60
  6. Step 6: Final answer
    x = 17,929,850.63

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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.