Home / 405,770,845,424.46-559,974,701,815.55-238,735,634,872.73

Finding the Fourth Proportional to 405,770,845,424.46, 559,974,701,815.55 and 238,735,634,872.73

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Solution

The fourth proportional to 405,770,845,424.46, 559,974,701,815.55 and 238,735,634,872.73 is: 329,461,609,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,770,845,424.46 : 559,974,701,815.55 = 238,735,634,872.73 : x
  2. Step 2: Convert to fraction form
    405,770,845,424.46/559,974,701,815.55 = 238,735,634,872.73/x
  3. Step 3: Cross multiply
    405,770,845,424.46x = 559,974,701,815.55 × 238,735,634,872.73
  4. Step 4: Simplify right side
    405,770,845,424.46x = 133,685,915,950,603,011,358,720
  5. Step 5: Solve for x
    x = 133,685,915,950,603,011,358,720/405,770,845,424.46
  6. Step 6: Final answer
    x = 329,461,609,817.63

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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.