Home / 513,722,203.11-708,936,640.34-278,772,863.59

Finding the Fourth Proportional to 513,722,203.11, 708,936,640.34 and 278,772,863.59

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Solution

The fourth proportional to 513,722,203.11, 708,936,640.34 and 278,772,863.59 is: 384,706,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,722,203.11 : 708,936,640.34 = 278,772,863.59 : x
  2. Step 2: Convert to fraction form
    513,722,203.11/708,936,640.34 = 278,772,863.59/x
  3. Step 3: Cross multiply
    513,722,203.11x = 708,936,640.34 × 278,772,863.59
  4. Step 4: Simplify right side
    513,722,203.11x = 197,632,297,331,455,712
  5. Step 5: Solve for x
    x = 197,632,297,331,455,712/513,722,203.11
  6. Step 6: Final answer
    x = 384,706,551.78

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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.