Home / 2,192,211.23-3,025,188.92-1,212,133.40

Finding the Fourth Proportional to 2,192,211.23, 3,025,188.92 and 1,212,133.40

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Solution

The fourth proportional to 2,192,211.23, 3,025,188.92 and 1,212,133.40 is: 1,672,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192,211.23 : 3,025,188.92 = 1,212,133.40 : x
  2. Step 2: Convert to fraction form
    2,192,211.23/3,025,188.92 = 1,212,133.40/x
  3. Step 3: Cross multiply
    2,192,211.23x = 3,025,188.92 × 1,212,133.40
  4. Step 4: Simplify right side
    2,192,211.23x = 3,666,932,510,055.32
  5. Step 5: Solve for x
    x = 3,666,932,510,055.32/2,192,211.23
  6. Step 6: Final answer
    x = 1,672,709.49

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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.