Home / 128,319,626.98-192,490,751.34-36,204,171.94

Finding the Fourth Proportional to 128,319,626.98, 192,490,751.34 and 36,204,171.94

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Solution

The fourth proportional to 128,319,626.98, 192,490,751.34 and 36,204,171.94 is: 54,309,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,319,626.98 : 192,490,751.34 = 36,204,171.94 : x
  2. Step 2: Convert to fraction form
    128,319,626.98/192,490,751.34 = 36,204,171.94/x
  3. Step 3: Cross multiply
    128,319,626.98x = 192,490,751.34 × 36,204,171.94
  4. Step 4: Simplify right side
    128,319,626.98x = 6,968,968,258,373,145
  5. Step 5: Solve for x
    x = 6,968,968,258,373,145/128,319,626.98
  6. Step 6: Final answer
    x = 54,309,449.17

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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.