Home / 638,512,924.80-957,911,104.80-293,383,329.60

Finding the Fourth Proportional to 638,512,924.80, 957,911,104.80 and 293,383,329.60

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Solution

The fourth proportional to 638,512,924.80, 957,911,104.80 and 293,383,329.60 is: 440,140,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,512,924.80 : 957,911,104.80 = 293,383,329.60 : x
  2. Step 2: Convert to fraction form
    638,512,924.80/957,911,104.80 = 293,383,329.60/x
  3. Step 3: Cross multiply
    638,512,924.80x = 957,911,104.80 × 293,383,329.60
  4. Step 4: Simplify right side
    638,512,924.80x = 281,035,149,387,038,560
  5. Step 5: Solve for x
    x = 281,035,149,387,038,560/638,512,924.80
  6. Step 6: Final answer
    x = 440,140,110.67

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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.