Finding the Fourth Proportional to 202,723,784.50, 279,989,769.84 and 137,420,314.42
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Solution
The fourth proportional to 202,723,784.50, 279,989,769.84 and 137,420,314.42 is: 189,796,586.03
Step by Step Solution
- Step 1: Write the proportion equation
202,723,784.50 : 279,989,769.84 = 137,420,314.42 : x - Step 2: Convert to fraction form
202,723,784.50/279,989,769.84 = 137,420,314.42/x - Step 3: Cross multiply
202,723,784.50x = 279,989,769.84 × 137,420,314.42 - Step 4: Simplify right side
202,723,784.50x = 38,476,282,205,796,224 - Step 5: Solve for x
x = 38,476,282,205,796,224/202,723,784.50 - Step 6: Final answer
x = 189,796,586.03
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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.