Home / 133,991,631.60-200,987,447.40-128,322,927.60

Finding the Fourth Proportional to 133,991,631.60, 200,987,447.40 and 128,322,927.60

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Solution

The fourth proportional to 133,991,631.60, 200,987,447.40 and 128,322,927.60 is: 192,484,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,991,631.60 : 200,987,447.40 = 128,322,927.60 : x
  2. Step 2: Convert to fraction form
    133,991,631.60/200,987,447.40 = 128,322,927.60/x
  3. Step 3: Cross multiply
    133,991,631.60x = 200,987,447.40 × 128,322,927.60
  4. Step 4: Simplify right side
    133,991,631.60x = 25,791,297,661,219,008
  5. Step 5: Solve for x
    x = 25,791,297,661,219,008/133,991,631.60
  6. Step 6: Final answer
    x = 192,484,391.40

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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.