Home / 285,837,554.80-394,444,441.56-155,457,466.48

Finding the Fourth Proportional to 285,837,554.80, 394,444,441.56 and 155,457,466.48

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Solution

The fourth proportional to 285,837,554.80, 394,444,441.56 and 155,457,466.48 is: 214,525,112.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,837,554.80 : 394,444,441.56 = 155,457,466.48 : x
  2. Step 2: Convert to fraction form
    285,837,554.80/394,444,441.56 = 155,457,466.48/x
  3. Step 3: Cross multiply
    285,837,554.80x = 394,444,441.56 × 155,457,466.48
  4. Step 4: Simplify right side
    285,837,554.80x = 61,319,333,552,036,016
  5. Step 5: Solve for x
    x = 61,319,333,552,036,016/285,837,554.80
  6. Step 6: Final answer
    x = 214,525,112.33

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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.