Home / 21,711,920.35-29,962,970.65-11,789,221.26

Finding the Fourth Proportional to 21,711,920.35, 29,962,970.65 and 11,789,221.26

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Solution

The fourth proportional to 21,711,920.35, 29,962,970.65 and 11,789,221.26 is: 16,269,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711,920.35 : 29,962,970.65 = 11,789,221.26 : x
  2. Step 2: Convert to fraction form
    21,711,920.35/29,962,970.65 = 11,789,221.26/x
  3. Step 3: Cross multiply
    21,711,920.35x = 29,962,970.65 × 11,789,221.26
  4. Step 4: Simplify right side
    21,711,920.35x = 353,240,090,540,789.88
  5. Step 5: Solve for x
    x = 353,240,090,540,789.88/21,711,920.35
  6. Step 6: Final answer
    x = 16,269,408.00

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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.