Home / 279,884,999,272.80-419,925,454,114.32-81,150,213,951.84

Finding the Fourth Proportional to 279,884,999,272.80, 419,925,454,114.32 and 81,150,213,951.84

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Solution

The fourth proportional to 279,884,999,272.80, 419,925,454,114.32 and 81,150,213,951.84 is: 121,753,722,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,884,999,272.80 : 419,925,454,114.32 = 81,150,213,951.84 : x
  2. Step 2: Convert to fraction form
    279,884,999,272.80/419,925,454,114.32 = 81,150,213,951.84/x
  3. Step 3: Cross multiply
    279,884,999,272.80x = 419,925,454,114.32 × 81,150,213,951.84
  4. Step 4: Simplify right side
    279,884,999,272.80x = 34,077,040,445,200,638,410,752
  5. Step 5: Solve for x
    x = 34,077,040,445,200,638,410,752/279,884,999,272.80
  6. Step 6: Final answer
    x = 121,753,722,184.97

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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.