Home / 208,351,674.45-287,504,586.54-120,274,047.72

Finding the Fourth Proportional to 208,351,674.45, 287,504,586.54 and 120,274,047.72

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Solution

The fourth proportional to 208,351,674.45, 287,504,586.54 and 120,274,047.72 is: 165,966,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,351,674.45 : 287,504,586.54 = 120,274,047.72 : x
  2. Step 2: Convert to fraction form
    208,351,674.45/287,504,586.54 = 120,274,047.72/x
  3. Step 3: Cross multiply
    208,351,674.45x = 287,504,586.54 × 120,274,047.72
  4. Step 4: Simplify right side
    208,351,674.45x = 34,579,340,361,230,832
  5. Step 5: Solve for x
    x = 34,579,340,361,230,832/208,351,674.45
  6. Step 6: Final answer
    x = 165,966,222.51

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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.