Home / 299,974,345.34-449,916,054.21-81,641,701.21

Finding the Fourth Proportional to 299,974,345.34, 449,916,054.21 and 81,641,701.21

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Solution

The fourth proportional to 299,974,345.34, 449,916,054.21 and 81,641,701.21 is: 122,450,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,974,345.34 : 449,916,054.21 = 81,641,701.21 : x
  2. Step 2: Convert to fraction form
    299,974,345.34/449,916,054.21 = 81,641,701.21/x
  3. Step 3: Cross multiply
    299,974,345.34x = 449,916,054.21 × 81,641,701.21
  4. Step 4: Simplify right side
    299,974,345.34x = 36,731,912,067,394,976
  5. Step 5: Solve for x
    x = 36,731,912,067,394,976/299,974,345.34
  6. Step 6: Final answer
    x = 122,450,178.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.