Home / 15,382,914.54-21,231,261.93-9,883,164.51

Finding the Fourth Proportional to 15,382,914.54, 21,231,261.93 and 9,883,164.51

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Solution

The fourth proportional to 15,382,914.54, 21,231,261.93 and 9,883,164.51 is: 13,640,591.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382,914.54 : 21,231,261.93 = 9,883,164.51 : x
  2. Step 2: Convert to fraction form
    15,382,914.54/21,231,261.93 = 9,883,164.51/x
  3. Step 3: Cross multiply
    15,382,914.54x = 21,231,261.93 × 9,883,164.51
  4. Step 4: Simplify right side
    15,382,914.54x = 209,832,054,409,090.09
  5. Step 5: Solve for x
    x = 209,832,054,409,090.09/15,382,914.54
  6. Step 6: Final answer
    x = 13,640,591.57

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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.