Home / 336,870,512.40-505,305,768.60-287,552,787.60

Finding the Fourth Proportional to 336,870,512.40, 505,305,768.60 and 287,552,787.60

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Solution

The fourth proportional to 336,870,512.40, 505,305,768.60 and 287,552,787.60 is: 431,329,181.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,870,512.40 : 505,305,768.60 = 287,552,787.60 : x
  2. Step 2: Convert to fraction form
    336,870,512.40/505,305,768.60 = 287,552,787.60/x
  3. Step 3: Cross multiply
    336,870,512.40x = 505,305,768.60 × 287,552,787.60
  4. Step 4: Simplify right side
    336,870,512.40x = 145,302,082,351,290,560
  5. Step 5: Solve for x
    x = 145,302,082,351,290,560/336,870,512.40
  6. Step 6: Final answer
    x = 431,329,181.40

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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.