Home / 15,382,918.54-21,231,267.45-9,883,168.51

Finding the Fourth Proportional to 15,382,918.54, 21,231,267.45 and 9,883,168.51

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Solution

The fourth proportional to 15,382,918.54, 21,231,267.45 and 9,883,168.51 is: 13,640,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382,918.54 : 21,231,267.45 = 9,883,168.51 : x
  2. Step 2: Convert to fraction form
    15,382,918.54/21,231,267.45 = 9,883,168.51/x
  3. Step 3: Cross multiply
    15,382,918.54x = 21,231,267.45 × 9,883,168.51
  4. Step 4: Simplify right side
    15,382,918.54x = 209,832,193,889,228
  5. Step 5: Solve for x
    x = 209,832,193,889,228/15,382,918.54
  6. Step 6: Final answer
    x = 13,640,597.09

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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.