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Finding the Fourth Proportional to 455,703,480.76, 628,872,728.80 and 246,859,622.72

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Solution

The fourth proportional to 455,703,480.76, 628,872,728.80 and 246,859,622.72 is: 340,667,322.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,703,480.76 : 628,872,728.80 = 246,859,622.72 : x
  2. Step 2: Convert to fraction form
    455,703,480.76/628,872,728.80 = 246,859,622.72/x
  3. Step 3: Cross multiply
    455,703,480.76x = 628,872,728.80 × 246,859,622.72
  4. Step 4: Simplify right side
    455,703,480.76x = 155,243,284,570,464,864
  5. Step 5: Solve for x
    x = 155,243,284,570,464,864/455,703,480.76
  6. Step 6: Final answer
    x = 340,667,322.34

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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.