Home / 427,780,640.63-641,595,110.46-194,556,724.43

Finding the Fourth Proportional to 427,780,640.63, 641,595,110.46 and 194,556,724.43

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Solution

The fourth proportional to 427,780,640.63, 641,595,110.46 and 194,556,724.43 is: 291,800,589.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,780,640.63 : 641,595,110.46 = 194,556,724.43 : x
  2. Step 2: Convert to fraction form
    427,780,640.63/641,595,110.46 = 194,556,724.43/x
  3. Step 3: Cross multiply
    427,780,640.63x = 641,595,110.46 × 194,556,724.43
  4. Step 4: Simplify right side
    427,780,640.63x = 124,826,643,098,193,664
  5. Step 5: Solve for x
    x = 124,826,643,098,193,664/427,780,640.63
  6. Step 6: Final answer
    x = 291,800,589.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.