Home / 21,652,021.72-29,879,813.01-11,728,927.50

Finding the Fourth Proportional to 21,652,021.72, 29,879,813.01 and 11,728,927.50

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Solution

The fourth proportional to 21,652,021.72, 29,879,813.01 and 11,728,927.50 is: 16,185,932.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652,021.72 : 29,879,813.01 = 11,728,927.50 : x
  2. Step 2: Convert to fraction form
    21,652,021.72/29,879,813.01 = 11,728,927.50/x
  3. Step 3: Cross multiply
    21,652,021.72x = 29,879,813.01 × 11,728,927.50
  4. Step 4: Simplify right side
    21,652,021.72x = 350,458,160,507,846.81
  5. Step 5: Solve for x
    x = 350,458,160,507,846.81/21,652,021.72
  6. Step 6: Final answer
    x = 16,185,932.43

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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.