Finding the Fourth Proportional to 221,266,348.37, 305,339,557.21 and 122,144,968.02
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Solution
The fourth proportional to 221,266,348.37, 305,339,557.21 and 122,144,968.02 is: 168,555,637.70
Step by Step Solution
- Step 1: Write the proportion equation
221,266,348.37 : 305,339,557.21 = 122,144,968.02 : x - Step 2: Convert to fraction form
221,266,348.37/305,339,557.21 = 122,144,968.02/x - Step 3: Cross multiply
221,266,348.37x = 305,339,557.21 × 122,144,968.02 - Step 4: Simplify right side
221,266,348.37x = 37,295,690,450,656,408 - Step 5: Solve for x
x = 37,295,690,450,656,408/221,266,348.37 - Step 6: Final answer
x = 168,555,637.70
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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.