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Finding the Fourth Proportional to 488,642,910.80, 732,397,495.80 and 197,366,003.60

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Solution

The fourth proportional to 488,642,910.80, 732,397,495.80 and 197,366,003.60 is: 295,820,042.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,642,910.80 : 732,397,495.80 = 197,366,003.60 : x
  2. Step 2: Convert to fraction form
    488,642,910.80/732,397,495.80 = 197,366,003.60/x
  3. Step 3: Cross multiply
    488,642,910.80x = 732,397,495.80 × 197,366,003.60
  4. Step 4: Simplify right side
    488,642,910.80x = 144,550,366,792,693,760
  5. Step 5: Solve for x
    x = 144,550,366,792,693,760/488,642,910.80
  6. Step 6: Final answer
    x = 295,820,042.81

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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.