Home / 255,879,404.80-383,819,107.20-209,962,902.40

Finding the Fourth Proportional to 255,879,404.80, 383,819,107.20 and 209,962,902.40

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Solution

The fourth proportional to 255,879,404.80, 383,819,107.20 and 209,962,902.40 is: 314,944,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,879,404.80 : 383,819,107.20 = 209,962,902.40 : x
  2. Step 2: Convert to fraction form
    255,879,404.80/383,819,107.20 = 209,962,902.40/x
  3. Step 3: Cross multiply
    255,879,404.80x = 383,819,107.20 × 209,962,902.40
  4. Step 4: Simplify right side
    255,879,404.80x = 80,587,773,744,288,736
  5. Step 5: Solve for x
    x = 80,587,773,744,288,736/255,879,404.80
  6. Step 6: Final answer
    x = 314,944,353.60

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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.