Home / 21,918,009.20-30,222,100.59-16,393,679.96

Finding the Fourth Proportional to 21,918,009.20, 30,222,100.59 and 16,393,679.96

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Solution

The fourth proportional to 21,918,009.20, 30,222,100.59 and 16,393,679.96 is: 22,604,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918,009.20 : 30,222,100.59 = 16,393,679.96 : x
  2. Step 2: Convert to fraction form
    21,918,009.20/30,222,100.59 = 16,393,679.96/x
  3. Step 3: Cross multiply
    21,918,009.20x = 30,222,100.59 × 16,393,679.96
  4. Step 4: Simplify right side
    21,918,009.20x = 495,451,444,640,276.69
  5. Step 5: Solve for x
    x = 495,451,444,640,276.69/21,918,009.20
  6. Step 6: Final answer
    x = 22,604,764.89

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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.