Home / 298,980,657.43-412,630,570.78-173,505,911.90

Finding the Fourth Proportional to 298,980,657.43, 412,630,570.78 and 173,505,911.90

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Solution

The fourth proportional to 298,980,657.43, 412,630,570.78 and 173,505,911.90 is: 239,459,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,980,657.43 : 412,630,570.78 = 173,505,911.90 : x
  2. Step 2: Convert to fraction form
    298,980,657.43/412,630,570.78 = 173,505,911.90/x
  3. Step 3: Cross multiply
    298,980,657.43x = 412,630,570.78 × 173,505,911.90
  4. Step 4: Simplify right side
    298,980,657.43x = 71,593,843,458,504,480
  5. Step 5: Solve for x
    x = 71,593,843,458,504,480/298,980,657.43
  6. Step 6: Final answer
    x = 239,459,783.37

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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.