Home / 305,914,338,487.90-422,163,099,579.38-166,868,650,359.16

Finding the Fourth Proportional to 305,914,338,487.90, 422,163,099,579.38 and 166,868,650,359.16

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Solution

The fourth proportional to 305,914,338,487.90, 422,163,099,579.38 and 166,868,650,359.16 is: 230,279,453,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,914,338,487.90 : 422,163,099,579.38 = 166,868,650,359.16 : x
  2. Step 2: Convert to fraction form
    305,914,338,487.90/422,163,099,579.38 = 166,868,650,359.16/x
  3. Step 3: Cross multiply
    305,914,338,487.90x = 422,163,099,579.38 × 166,868,650,359.16
  4. Step 4: Simplify right side
    305,914,338,487.90x = 70,445,786,658,250,806,001,664
  5. Step 5: Solve for x
    x = 70,445,786,658,250,806,001,664/305,914,338,487.90
  6. Step 6: Final answer
    x = 230,279,453,413.19

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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.