Home / 20,671,961.25-31,008,270.71-11,508,179.22

Finding the Fourth Proportional to 20,671,961.25, 31,008,270.71 and 11,508,179.22

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Solution

The fourth proportional to 20,671,961.25, 31,008,270.71 and 11,508,179.22 is: 17,262,451.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671,961.25 : 31,008,270.71 = 11,508,179.22 : x
  2. Step 2: Convert to fraction form
    20,671,961.25/31,008,270.71 = 11,508,179.22/x
  3. Step 3: Cross multiply
    20,671,961.25x = 31,008,270.71 × 11,508,179.22
  4. Step 4: Simplify right side
    20,671,961.25x = 356,848,736,575,415.75
  5. Step 5: Solve for x
    x = 356,848,736,575,415.75/20,671,961.25
  6. Step 6: Final answer
    x = 17,262,451.89

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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.