Home / 455,839,645.22-629,275,624.32-305,391,355.34

Finding the Fourth Proportional to 455,839,645.22, 629,275,624.32 and 305,391,355.34

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Solution

The fourth proportional to 455,839,645.22, 629,275,624.32 and 305,391,355.34 is: 421,585,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,839,645.22 : 629,275,624.32 = 305,391,355.34 : x
  2. Step 2: Convert to fraction form
    455,839,645.22/629,275,624.32 = 305,391,355.34/x
  3. Step 3: Cross multiply
    455,839,645.22x = 629,275,624.32 × 305,391,355.34
  4. Step 4: Simplify right side
    455,839,645.22x = 192,175,335,793,509,472
  5. Step 5: Solve for x
    x = 192,175,335,793,509,472/455,839,645.22
  6. Step 6: Final answer
    x = 421,585,392.60

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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.