Finding the Fourth Proportional to 221,266,343.99, 305,339,551.19 and 122,144,963.65
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Solution
The fourth proportional to 221,266,343.99, 305,339,551.19 and 122,144,963.65 is: 168,555,631.68
Step by Step Solution
- Step 1: Write the proportion equation
221,266,343.99 : 305,339,551.19 = 122,144,963.65 : x - Step 2: Convert to fraction form
221,266,343.99/305,339,551.19 = 122,144,963.65/x - Step 3: Cross multiply
221,266,343.99x = 305,339,551.19 × 122,144,963.65 - Step 4: Simplify right side
221,266,343.99x = 37,295,688,380,092,616 - Step 5: Solve for x
x = 37,295,688,380,092,616/221,266,343.99 - Step 6: Final answer
x = 168,555,631.68
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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.