Home / 21,907,749.78-30,232,321.20-12,118,186.44

Finding the Fourth Proportional to 21,907,749.78, 30,232,321.20 and 12,118,186.44

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Solution

The fourth proportional to 21,907,749.78, 30,232,321.20 and 12,118,186.44 is: 16,722,890.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907,749.78 : 30,232,321.20 = 12,118,186.44 : x
  2. Step 2: Convert to fraction form
    21,907,749.78/30,232,321.20 = 12,118,186.44/x
  3. Step 3: Cross multiply
    21,907,749.78x = 30,232,321.20 × 12,118,186.44
  4. Step 4: Simplify right side
    21,907,749.78x = 366,360,904,815,564.50
  5. Step 5: Solve for x
    x = 366,360,904,815,564.50/21,907,749.78
  6. Step 6: Final answer
    x = 16,722,890.69

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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.