Home / 221,733,359.27-305,994,018.42-122,620,775.30

Finding the Fourth Proportional to 221,733,359.27, 305,994,018.42 and 122,620,775.30

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Solution

The fourth proportional to 221,733,359.27, 305,994,018.42 and 122,620,775.30 is: 169,217,766.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,733,359.27 : 305,994,018.42 = 122,620,775.30 : x
  2. Step 2: Convert to fraction form
    221,733,359.27/305,994,018.42 = 122,620,775.30/x
  3. Step 3: Cross multiply
    221,733,359.27x = 305,994,018.42 × 122,620,775.30
  4. Step 4: Simplify right side
    221,733,359.27x = 37,521,223,774,292,912
  5. Step 5: Solve for x
    x = 37,521,223,774,292,912/221,733,359.27
  6. Step 6: Final answer
    x = 169,217,766.32

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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.