Home / 274,550,791.52-378,787,909.68-155,457,138.40

Finding the Fourth Proportional to 274,550,791.52, 378,787,909.68 and 155,457,138.40

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Solution

The fourth proportional to 274,550,791.52, 378,787,909.68 and 155,457,138.40 is: 214,478,655.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,550,791.52 : 378,787,909.68 = 155,457,138.40 : x
  2. Step 2: Convert to fraction form
    274,550,791.52/378,787,909.68 = 155,457,138.40/x
  3. Step 3: Cross multiply
    274,550,791.52x = 378,787,909.68 × 155,457,138.40
  4. Step 4: Simplify right side
    274,550,791.52x = 58,885,284,499,370,464
  5. Step 5: Solve for x
    x = 58,885,284,499,370,464/274,550,791.52
  6. Step 6: Final answer
    x = 214,478,655.02

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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.