Finding the Fourth Proportional to 196,136,492.09, 270,687,490.58 and 146,490,713.65
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Solution
The fourth proportional to 196,136,492.09, 270,687,490.58 and 146,490,713.65 is: 202,171,473.79
Step by Step Solution
- Step 1: Write the proportion equation
196,136,492.09 : 270,687,490.58 = 146,490,713.65 : x - Step 2: Convert to fraction form
196,136,492.09/270,687,490.58 = 146,490,713.65/x - Step 3: Cross multiply
196,136,492.09x = 270,687,490.58 × 146,490,713.65 - Step 4: Simplify right side
196,136,492.09x = 39,653,203,670,515,136 - Step 5: Solve for x
x = 39,653,203,670,515,136/196,136,492.09 - Step 6: Final answer
x = 202,171,473.79
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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.