Home / 505,469,115.72-697,533,999.05-282,452,629.94

Finding the Fourth Proportional to 505,469,115.72, 697,533,999.05 and 282,452,629.94

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Solution

The fourth proportional to 505,469,115.72, 697,533,999.05 and 282,452,629.94 is: 389,777,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,469,115.72 : 697,533,999.05 = 282,452,629.94 : x
  2. Step 2: Convert to fraction form
    505,469,115.72/697,533,999.05 = 282,452,629.94/x
  3. Step 3: Cross multiply
    505,469,115.72x = 697,533,999.05 × 282,452,629.94
  4. Step 4: Simplify right side
    505,469,115.72x = 197,020,312,500,750,272
  5. Step 5: Solve for x
    x = 197,020,312,500,750,272/505,469,115.72
  6. Step 6: Final answer
    x = 389,777,152.30

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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.