Home / 209,765,868.36-289,385,065.20-200,040,498

Finding the Fourth Proportional to 209,765,868.36, 289,385,065.20 and 200,040,498

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Solution

The fourth proportional to 209,765,868.36, 289,385,065.20 and 200,040,498 is: 275,968,311.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,765,868.36 : 289,385,065.20 = 200,040,498 : x
  2. Step 2: Convert to fraction form
    209,765,868.36/289,385,065.20 = 200,040,498/x
  3. Step 3: Cross multiply
    209,765,868.36x = 289,385,065.20 × 200,040,498
  4. Step 4: Simplify right side
    209,765,868.36x = 57,888,732,556,370,464
  5. Step 5: Solve for x
    x = 57,888,732,556,370,464/209,765,868.36
  6. Step 6: Final answer
    x = 275,968,311.76

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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.