Home / 21,818,289.60-30,102,567.57-12,649,102.56

Finding the Fourth Proportional to 21,818,289.60, 30,102,567.57 and 12,649,102.56

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Solution

The fourth proportional to 21,818,289.60, 30,102,567.57 and 12,649,102.56 is: 17,451,893.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,818,289.60 : 30,102,567.57 = 12,649,102.56 : x
  2. Step 2: Convert to fraction form
    21,818,289.60/30,102,567.57 = 12,649,102.56/x
  3. Step 3: Cross multiply
    21,818,289.60x = 30,102,567.57 × 12,649,102.56
  4. Step 4: Simplify right side
    21,818,289.60x = 380,770,464,512,260
  5. Step 5: Solve for x
    x = 380,770,464,512,260/21,818,289.60
  6. Step 6: Final answer
    x = 17,451,893.41

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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.