Home / 438,906,496.47-605,105,028.41-348,679,362.12

Finding the Fourth Proportional to 438,906,496.47, 605,105,028.41 and 348,679,362.12

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Solution

The fourth proportional to 438,906,496.47, 605,105,028.41 and 348,679,362.12 is: 480,712,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,906,496.47 : 605,105,028.41 = 348,679,362.12 : x
  2. Step 2: Convert to fraction form
    438,906,496.47/605,105,028.41 = 348,679,362.12/x
  3. Step 3: Cross multiply
    438,906,496.47x = 605,105,028.41 × 348,679,362.12
  4. Step 4: Simplify right side
    438,906,496.47x = 210,987,635,319,859,872
  5. Step 5: Solve for x
    x = 210,987,635,319,859,872/438,906,496.47
  6. Step 6: Final answer
    x = 480,712,035.52

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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.