Home / 15,686,918.37-21,644,400.56-9,491,810.96

Finding the Fourth Proportional to 15,686,918.37, 21,644,400.56 and 9,491,810.96

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Solution

The fourth proportional to 15,686,918.37, 21,644,400.56 and 9,491,810.96 is: 13,096,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,918.37 : 21,644,400.56 = 9,491,810.96 : x
  2. Step 2: Convert to fraction form
    15,686,918.37/21,644,400.56 = 9,491,810.96/x
  3. Step 3: Cross multiply
    15,686,918.37x = 21,644,400.56 × 9,491,810.96
  4. Step 4: Simplify right side
    15,686,918.37x = 205,444,558,464,690.09
  5. Step 5: Solve for x
    x = 205,444,558,464,690.09/15,686,918.37
  6. Step 6: Final answer
    x = 13,096,553.04

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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.