Home / 193,103,998.80-289,655,998.20-71,919,704.40

Finding the Fourth Proportional to 193,103,998.80, 289,655,998.20 and 71,919,704.40

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Solution

The fourth proportional to 193,103,998.80, 289,655,998.20 and 71,919,704.40 is: 107,879,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,103,998.80 : 289,655,998.20 = 71,919,704.40 : x
  2. Step 2: Convert to fraction form
    193,103,998.80/289,655,998.20 = 71,919,704.40/x
  3. Step 3: Cross multiply
    193,103,998.80x = 289,655,998.20 × 71,919,704.40
  4. Step 4: Simplify right side
    193,103,998.80x = 20,831,973,768,230,932
  5. Step 5: Solve for x
    x = 20,831,973,768,230,932/193,103,998.80
  6. Step 6: Final answer
    x = 107,879,556.60

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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.