Home / 21,021,718.80-31,537,243.80-9,659,427.60

Finding the Fourth Proportional to 21,021,718.80, 31,537,243.80 and 9,659,427.60

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Solution

The fourth proportional to 21,021,718.80, 31,537,243.80 and 9,659,427.60 is: 14,491,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,718.80 : 31,537,243.80 = 9,659,427.60 : x
  2. Step 2: Convert to fraction form
    21,021,718.80/31,537,243.80 = 9,659,427.60/x
  3. Step 3: Cross multiply
    21,021,718.80x = 31,537,243.80 × 9,659,427.60
  4. Step 4: Simplify right side
    21,021,718.80x = 304,631,723,189,648.88
  5. Step 5: Solve for x
    x = 304,631,723,189,648.88/21,021,718.80
  6. Step 6: Final answer
    x = 14,491,285.23

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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.