Home / 449,363,534.69-620,067,971.81-248,393,261.21

Finding the Fourth Proportional to 449,363,534.69, 620,067,971.81 and 248,393,261.21

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Solution

The fourth proportional to 449,363,534.69, 620,067,971.81 and 248,393,261.21 is: 342,753,013.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,363,534.69 : 620,067,971.81 = 248,393,261.21 : x
  2. Step 2: Convert to fraction form
    449,363,534.69/620,067,971.81 = 248,393,261.21/x
  3. Step 3: Cross multiply
    449,363,534.69x = 620,067,971.81 × 248,393,261.21
  4. Step 4: Simplify right side
    449,363,534.69x = 154,020,705,685,413,920
  5. Step 5: Solve for x
    x = 154,020,705,685,413,920/449,363,534.69
  6. Step 6: Final answer
    x = 342,753,013.53

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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.