Home / 221,733,367.17-305,994,029.32-122,620,783.20

Finding the Fourth Proportional to 221,733,367.17, 305,994,029.32 and 122,620,783.20

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Solution

The fourth proportional to 221,733,367.17, 305,994,029.32 and 122,620,783.20 is: 169,217,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,733,367.17 : 305,994,029.32 = 122,620,783.20 : x
  2. Step 2: Convert to fraction form
    221,733,367.17/305,994,029.32 = 122,620,783.20/x
  3. Step 3: Cross multiply
    221,733,367.17x = 305,994,029.32 × 122,620,783.20
  4. Step 4: Simplify right side
    221,733,367.17x = 37,521,227,528,747,968
  5. Step 5: Solve for x
    x = 37,521,227,528,747,968/221,733,367.17
  6. Step 6: Final answer
    x = 169,217,777.23

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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.