Home / 221,123,311.32-305,159,398.84-122,010,488.22

Finding the Fourth Proportional to 221,123,311.32, 305,159,398.84 and 122,010,488.22

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Solution

The fourth proportional to 221,123,311.32, 305,159,398.84 and 122,010,488.22 is: 168,379,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,123,311.32 : 305,159,398.84 = 122,010,488.22 : x
  2. Step 2: Convert to fraction form
    221,123,311.32/305,159,398.84 = 122,010,488.22/x
  3. Step 3: Cross multiply
    221,123,311.32x = 305,159,398.84 × 122,010,488.22
  4. Step 4: Simplify right side
    221,123,311.32x = 37,232,647,237,390,096
  5. Step 5: Solve for x
    x = 37,232,647,237,390,096/221,123,311.32
  6. Step 6: Final answer
    x = 168,379,566.20

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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.