Home / 19,858,859.57-27,407,988.83-11,157,705.65

Finding the Fourth Proportional to 19,858,859.57, 27,407,988.83 and 11,157,705.65

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Solution

The fourth proportional to 19,858,859.57, 27,407,988.83 and 11,157,705.65 is: 15,399,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858,859.57 : 27,407,988.83 = 11,157,705.65 : x
  2. Step 2: Convert to fraction form
    19,858,859.57/27,407,988.83 = 11,157,705.65/x
  3. Step 3: Cross multiply
    19,858,859.57x = 27,407,988.83 × 11,157,705.65
  4. Step 4: Simplify right side
    19,858,859.57x = 305,810,271,823,627.88
  5. Step 5: Solve for x
    x = 305,810,271,823,627.88/19,858,859.57
  6. Step 6: Final answer
    x = 15,399,185.98

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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.