Home / 133,020,100.40-199,530,150.60-87,633,143.60

Finding the Fourth Proportional to 133,020,100.40, 199,530,150.60 and 87,633,143.60

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Solution

The fourth proportional to 133,020,100.40, 199,530,150.60 and 87,633,143.60 is: 131,449,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020,100.40 : 199,530,150.60 = 87,633,143.60 : x
  2. Step 2: Convert to fraction form
    133,020,100.40/199,530,150.60 = 87,633,143.60/x
  3. Step 3: Cross multiply
    133,020,100.40x = 199,530,150.60 × 87,633,143.60
  4. Step 4: Simplify right side
    133,020,100.40x = 17,485,454,340,059,424
  5. Step 5: Solve for x
    x = 17,485,454,340,059,424/133,020,100.40
  6. Step 6: Final answer
    x = 131,449,715.40

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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.