Home / 21,208,435.10-31,782,997.80-11,472,029.66

Finding the Fourth Proportional to 21,208,435.10, 31,782,997.80 and 11,472,029.66

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Solution

The fourth proportional to 21,208,435.10, 31,782,997.80 and 11,472,029.66 is: 17,192,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,208,435.10 : 31,782,997.80 = 11,472,029.66 : x
  2. Step 2: Convert to fraction form
    21,208,435.10/31,782,997.80 = 11,472,029.66/x
  3. Step 3: Cross multiply
    21,208,435.10x = 31,782,997.80 × 11,472,029.66
  4. Step 4: Simplify right side
    21,208,435.10x = 364,615,493,445,314.75
  5. Step 5: Solve for x
    x = 364,615,493,445,314.75/21,208,435.10
  6. Step 6: Final answer
    x = 17,192,003.64

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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.