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Finding the Fourth Proportional to 363,792,891.90, 545,694,003.45 and 121,455,795.90

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Solution

The fourth proportional to 363,792,891.90, 545,694,003.45 and 121,455,795.90 is: 182,185,251.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,792,891.90 : 545,694,003.45 = 121,455,795.90 : x
  2. Step 2: Convert to fraction form
    363,792,891.90/545,694,003.45 = 121,455,795.90/x
  3. Step 3: Cross multiply
    363,792,891.90x = 545,694,003.45 × 121,455,795.90
  4. Step 4: Simplify right side
    363,792,891.90x = 66,277,699,506,877,104
  5. Step 5: Solve for x
    x = 66,277,699,506,877,104/363,792,891.90
  6. Step 6: Final answer
    x = 182,185,251.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.