Home / 405,770,845,420.85-559,974,701,810.57-238,735,634,869.10

Finding the Fourth Proportional to 405,770,845,420.85, 559,974,701,810.57 and 238,735,634,869.10

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Solution

The fourth proportional to 405,770,845,420.85, 559,974,701,810.57 and 238,735,634,869.10 is: 329,461,609,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,770,845,420.85 : 559,974,701,810.57 = 238,735,634,869.10 : x
  2. Step 2: Convert to fraction form
    405,770,845,420.85/559,974,701,810.57 = 238,735,634,869.10/x
  3. Step 3: Cross multiply
    405,770,845,420.85x = 559,974,701,810.57 × 238,735,634,869.10
  4. Step 4: Simplify right side
    405,770,845,420.85x = 133,685,915,947,381,383,233,536
  5. Step 5: Solve for x
    x = 133,685,915,947,381,383,233,536/405,770,845,420.85
  6. Step 6: Final answer
    x = 329,461,609,812.62

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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.