Home / 381,546,009.60-572,361,004.80-139,261,401.60

Finding the Fourth Proportional to 381,546,009.60, 572,361,004.80 and 139,261,401.60

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Solution

The fourth proportional to 381,546,009.60, 572,361,004.80 and 139,261,401.60 is: 208,907,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,546,009.60 : 572,361,004.80 = 139,261,401.60 : x
  2. Step 2: Convert to fraction form
    381,546,009.60/572,361,004.80 = 139,261,401.60/x
  3. Step 3: Cross multiply
    381,546,009.60x = 572,361,004.80 × 139,261,401.60
  4. Step 4: Simplify right side
    381,546,009.60x = 79,707,795,749,632,320
  5. Step 5: Solve for x
    x = 79,707,795,749,632,320/381,546,009.60
  6. Step 6: Final answer
    x = 208,907,428.58

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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.