Home / 427,780,639.13-641,595,108.22-194,556,722.92

Finding the Fourth Proportional to 427,780,639.13, 641,595,108.22 and 194,556,722.92

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Solution

The fourth proportional to 427,780,639.13, 641,595,108.22 and 194,556,722.92 is: 291,800,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,780,639.13 : 641,595,108.22 = 194,556,722.92 : x
  2. Step 2: Convert to fraction form
    427,780,639.13/641,595,108.22 = 194,556,722.92/x
  3. Step 3: Cross multiply
    427,780,639.13x = 641,595,108.22 × 194,556,722.92
  4. Step 4: Simplify right side
    427,780,639.13x = 124,826,641,694,695,568
  5. Step 5: Solve for x
    x = 124,826,641,694,695,568/427,780,639.13
  6. Step 6: Final answer
    x = 291,800,587.21

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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.