Home / 655,318,841.54-904,339,966.55-353,904,127.73

Finding the Fourth Proportional to 655,318,841.54, 904,339,966.55 and 353,904,127.73

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Solution

The fourth proportional to 655,318,841.54, 904,339,966.55 and 353,904,127.73 is: 488,387,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,318,841.54 : 904,339,966.55 = 353,904,127.73 : x
  2. Step 2: Convert to fraction form
    655,318,841.54/904,339,966.55 = 353,904,127.73/x
  3. Step 3: Cross multiply
    655,318,841.54x = 904,339,966.55 × 353,904,127.73
  4. Step 4: Simplify right side
    655,318,841.54x = 320,049,647,030,355,136
  5. Step 5: Solve for x
    x = 320,049,647,030,355,136/655,318,841.54
  6. Step 6: Final answer
    x = 488,387,677.49

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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.