Home / 515,450,486.88-711,321,787.92-283,663,478.88

Finding the Fourth Proportional to 515,450,486.88, 711,321,787.92 and 283,663,478.88

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Solution

The fourth proportional to 515,450,486.88, 711,321,787.92 and 283,663,478.88 is: 391,455,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,450,486.88 : 711,321,787.92 = 283,663,478.88 : x
  2. Step 2: Convert to fraction form
    515,450,486.88/711,321,787.92 = 283,663,478.88/x
  3. Step 3: Cross multiply
    515,450,486.88x = 711,321,787.92 × 283,663,478.88
  4. Step 4: Simplify right side
    515,450,486.88x = 201,776,012,964,528,736
  5. Step 5: Solve for x
    x = 201,776,012,964,528,736/515,450,486.88
  6. Step 6: Final answer
    x = 391,455,664.71

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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.