Home / 18,307,881.90-25,278,313.95-16,040,400.30

Finding the Fourth Proportional to 18,307,881.90, 25,278,313.95 and 16,040,400.30

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Solution

The fourth proportional to 18,307,881.90, 25,278,313.95 and 16,040,400.30 is: 22,147,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307,881.90 : 25,278,313.95 = 16,040,400.30 : x
  2. Step 2: Convert to fraction form
    18,307,881.90/25,278,313.95 = 16,040,400.30/x
  3. Step 3: Cross multiply
    18,307,881.90x = 25,278,313.95 × 16,040,400.30
  4. Step 4: Simplify right side
    18,307,881.90x = 405,474,274,667,074.19
  5. Step 5: Solve for x
    x = 405,474,274,667,074.19/18,307,881.90
  6. Step 6: Final answer
    x = 22,147,525.14

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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.