Home / 18,987,920.82-26,203,307.06-10,286,129.40

Finding the Fourth Proportional to 18,987,920.82, 26,203,307.06 and 10,286,129.40

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Solution

The fourth proportional to 18,987,920.82, 26,203,307.06 and 10,286,129.40 is: 14,194,845.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987,920.82 : 26,203,307.06 = 10,286,129.40 : x
  2. Step 2: Convert to fraction form
    18,987,920.82/26,203,307.06 = 10,286,129.40/x
  3. Step 3: Cross multiply
    18,987,920.82x = 26,203,307.06 × 10,286,129.40
  4. Step 4: Simplify right side
    18,987,920.82x = 269,530,607,075,662.94
  5. Step 5: Solve for x
    x = 269,530,607,075,662.94/18,987,920.82
  6. Step 6: Final answer
    x = 14,194,845.75

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1.5x scale

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.