Home / 438,906,524.94-605,105,067.60-348,679,390.64

Finding the Fourth Proportional to 438,906,524.94, 605,105,067.60 and 348,679,390.64

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Solution

The fourth proportional to 438,906,524.94, 605,105,067.60 and 348,679,390.64 is: 480,712,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,906,524.94 : 605,105,067.60 = 348,679,390.64 : x
  2. Step 2: Convert to fraction form
    438,906,524.94/605,105,067.60 = 348,679,390.64/x
  3. Step 3: Cross multiply
    438,906,524.94x = 605,105,067.60 × 348,679,390.64
  4. Step 4: Simplify right side
    438,906,524.94x = 210,987,666,240,918,496
  5. Step 5: Solve for x
    x = 210,987,666,240,918,496/438,906,524.94
  6. Step 6: Final answer
    x = 480,712,074.79

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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.