Home / 197,820,146.28-272,987,735.10-109,699,923.84

Finding the Fourth Proportional to 197,820,146.28, 272,987,735.10 and 109,699,923.84

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Solution

The fourth proportional to 197,820,146.28, 272,987,735.10 and 109,699,923.84 is: 151,383,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,820,146.28 : 272,987,735.10 = 109,699,923.84 : x
  2. Step 2: Convert to fraction form
    197,820,146.28/272,987,735.10 = 109,699,923.84/x
  3. Step 3: Cross multiply
    197,820,146.28x = 272,987,735.10 × 109,699,923.84
  4. Step 4: Simplify right side
    197,820,146.28x = 29,946,733,749,724,100
  5. Step 5: Solve for x
    x = 29,946,733,749,724,100/197,820,146.28
  6. Step 6: Final answer
    x = 151,383,639.70

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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.