Home / 221,266,348.88-305,339,557.91-122,144,968.53

Finding the Fourth Proportional to 221,266,348.88, 305,339,557.91 and 122,144,968.53

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Solution

The fourth proportional to 221,266,348.88, 305,339,557.91 and 122,144,968.53 is: 168,555,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,266,348.88 : 305,339,557.91 = 122,144,968.53 : x
  2. Step 2: Convert to fraction form
    221,266,348.88/305,339,557.91 = 122,144,968.53/x
  3. Step 3: Cross multiply
    221,266,348.88x = 305,339,557.91 × 122,144,968.53
  4. Step 4: Simplify right side
    221,266,348.88x = 37,295,690,691,270,336
  5. Step 5: Solve for x
    x = 37,295,690,691,270,336/221,266,348.88
  6. Step 6: Final answer
    x = 168,555,638.40

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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.