Home / 15,699,801.12-21,665,918.16-9,504,763.68

Finding the Fourth Proportional to 15,699,801.12, 21,665,918.16 and 9,504,763.68

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Solution

The fourth proportional to 15,699,801.12, 21,665,918.16 and 9,504,763.68 is: 13,116,690.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699,801.12 : 21,665,918.16 = 9,504,763.68 : x
  2. Step 2: Convert to fraction form
    15,699,801.12/21,665,918.16 = 9,504,763.68/x
  3. Step 3: Cross multiply
    15,699,801.12x = 21,665,918.16 × 9,504,763.68
  4. Step 4: Simplify right side
    15,699,801.12x = 205,929,432,021,020.44
  5. Step 5: Solve for x
    x = 205,929,432,021,020.44/15,699,801.12
  6. Step 6: Final answer
    x = 13,116,690.49

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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.