Home / 81,072,883,135.75-121,629,580,074.32-57,215,968,857.04

Finding the Fourth Proportional to 81,072,883,135.75, 121,629,580,074.32 and 57,215,968,857.04

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Solution

The fourth proportional to 81,072,883,135.75, 121,629,580,074.32 and 57,215,968,857.04 is: 85,838,248,209.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,072,883,135.75 : 121,629,580,074.32 = 57,215,968,857.04 : x
  2. Step 2: Convert to fraction form
    81,072,883,135.75/121,629,580,074.32 = 57,215,968,857.04/x
  3. Step 3: Cross multiply
    81,072,883,135.75x = 121,629,580,074.32 × 57,215,968,857.04
  4. Step 4: Simplify right side
    81,072,883,135.75x = 6,959,154,265,627,146,846,208
  5. Step 5: Solve for x
    x = 6,959,154,265,627,146,846,208/81,072,883,135.75
  6. Step 6: Final answer
    x = 85,838,248,209.02

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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.