Home / 300,521,603.20-450,782,404.80-147,191,324.80

Finding the Fourth Proportional to 300,521,603.20, 450,782,404.80 and 147,191,324.80

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Solution

The fourth proportional to 300,521,603.20, 450,782,404.80 and 147,191,324.80 is: 220,786,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,521,603.20 : 450,782,404.80 = 147,191,324.80 : x
  2. Step 2: Convert to fraction form
    300,521,603.20/450,782,404.80 = 147,191,324.80/x
  3. Step 3: Cross multiply
    300,521,603.20x = 450,782,404.80 × 147,191,324.80
  4. Step 4: Simplify right side
    300,521,603.20x = 66,351,259,359,041,888
  5. Step 5: Solve for x
    x = 66,351,259,359,041,888/300,521,603.20
  6. Step 6: Final answer
    x = 220,786,987.20

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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.