Home / 722,465,968.96-997,002,262.56-392,441,354.56

Finding the Fourth Proportional to 722,465,968.96, 997,002,262.56 and 392,441,354.56

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Solution

The fourth proportional to 722,465,968.96, 997,002,262.56 and 392,441,354.56 is: 541,568,648.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,465,968.96 : 997,002,262.56 = 392,441,354.56 : x
  2. Step 2: Convert to fraction form
    722,465,968.96/997,002,262.56 = 392,441,354.56/x
  3. Step 3: Cross multiply
    722,465,968.96x = 997,002,262.56 × 392,441,354.56
  4. Step 4: Simplify right side
    722,465,968.96x = 391,264,918,418,431,168
  5. Step 5: Solve for x
    x = 391,264,918,418,431,168/722,465,968.96
  6. Step 6: Final answer
    x = 541,568,648.53

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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.