Home / 274,377,903.72-378,631,710.54-155,297,940.72

Finding the Fourth Proportional to 274,377,903.72, 378,631,710.54 and 155,297,940.72

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Solution

The fourth proportional to 274,377,903.72, 378,631,710.54 and 155,297,940.72 is: 214,305,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,377,903.72 : 378,631,710.54 = 155,297,940.72 : x
  2. Step 2: Convert to fraction form
    274,377,903.72/378,631,710.54 = 155,297,940.72/x
  3. Step 3: Cross multiply
    274,377,903.72x = 378,631,710.54 × 155,297,940.72
  4. Step 4: Simplify right side
    274,377,903.72x = 58,800,724,938,153,120
  5. Step 5: Solve for x
    x = 58,800,724,938,153,120/274,377,903.72
  6. Step 6: Final answer
    x = 214,305,613.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.