Home / 118,195,318.22-177,362,064.88-85,373,522.06

Finding the Fourth Proportional to 118,195,318.22, 177,362,064.88 and 85,373,522.06

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Solution

The fourth proportional to 118,195,318.22, 177,362,064.88 and 85,373,522.06 is: 128,110,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,195,318.22 : 177,362,064.88 = 85,373,522.06 : x
  2. Step 2: Convert to fraction form
    118,195,318.22/177,362,064.88 = 85,373,522.06/x
  3. Step 3: Cross multiply
    118,195,318.22x = 177,362,064.88 × 85,373,522.06
  4. Step 4: Simplify right side
    118,195,318.22x = 15,142,024,158,639,832
  5. Step 5: Solve for x
    x = 15,142,024,158,639,832/118,195,318.22
  6. Step 6: Final answer
    x = 128,110,185.64

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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.