Home / 221,233,205.70-331,849,808.55-199,314,216.90

Finding the Fourth Proportional to 221,233,205.70, 331,849,808.55 and 199,314,216.90

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Solution

The fourth proportional to 221,233,205.70, 331,849,808.55 and 199,314,216.90 is: 298,971,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,233,205.70 : 331,849,808.55 = 199,314,216.90 : x
  2. Step 2: Convert to fraction form
    221,233,205.70/331,849,808.55 = 199,314,216.90/x
  3. Step 3: Cross multiply
    221,233,205.70x = 331,849,808.55 × 199,314,216.90
  4. Step 4: Simplify right side
    221,233,205.70x = 66,142,384,719,558,176
  5. Step 5: Solve for x
    x = 66,142,384,719,558,176/221,233,205.70
  6. Step 6: Final answer
    x = 298,971,325.35

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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.