Home / 18,513,482.13-27,657,640.06-11,983,362.57

Finding the Fourth Proportional to 18,513,482.13, 27,657,640.06 and 11,983,362.57

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Solution

The fourth proportional to 18,513,482.13, 27,657,640.06 and 11,983,362.57 is: 17,902,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513,482.13 : 27,657,640.06 = 11,983,362.57 : x
  2. Step 2: Convert to fraction form
    18,513,482.13/27,657,640.06 = 11,983,362.57/x
  3. Step 3: Cross multiply
    18,513,482.13x = 27,657,640.06 × 11,983,362.57
  4. Step 4: Simplify right side
    18,513,482.13x = 331,431,528,639,578.19
  5. Step 5: Solve for x
    x = 331,431,528,639,578.19/18,513,482.13
  6. Step 6: Final answer
    x = 17,902,171.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.