Home / 20,118,938.45-27,767,758.41-11,858,518.55

Finding the Fourth Proportional to 20,118,938.45, 27,767,758.41 and 11,858,518.55

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Solution

The fourth proportional to 20,118,938.45, 27,767,758.41 and 11,858,518.55 is: 16,366,891.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,938.45 : 27,767,758.41 = 11,858,518.55 : x
  2. Step 2: Convert to fraction form
    20,118,938.45/27,767,758.41 = 11,858,518.55/x
  3. Step 3: Cross multiply
    20,118,938.45x = 27,767,758.41 × 11,858,518.55
  4. Step 4: Simplify right side
    20,118,938.45x = 329,284,478,058,064.69
  5. Step 5: Solve for x
    x = 329,284,478,058,064.69/20,118,938.45
  6. Step 6: Final answer
    x = 16,366,891.27

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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.