Home / 155,409,087.88-214,458,908.32-85,792,970.44

Finding the Fourth Proportional to 155,409,087.88, 214,458,908.32 and 85,792,970.44

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Solution

The fourth proportional to 155,409,087.88, 214,458,908.32 and 85,792,970.44 is: 118,391,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,409,087.88 : 214,458,908.32 = 85,792,970.44 : x
  2. Step 2: Convert to fraction form
    155,409,087.88/214,458,908.32 = 85,792,970.44/x
  3. Step 3: Cross multiply
    155,409,087.88x = 214,458,908.32 × 85,792,970.44
  4. Step 4: Simplify right side
    155,409,087.88x = 18,399,066,782,092,428
  5. Step 5: Solve for x
    x = 18,399,066,782,092,428/155,409,087.88
  6. Step 6: Final answer
    x = 118,391,189.56

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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.