Finding the Fourth Proportional to 205,328,535.40, 307,992,803.10 and 203,912,957.80
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Solution
The fourth proportional to 205,328,535.40, 307,992,803.10 and 203,912,957.80 is: 305,869,436.70
Step by Step Solution
- Step 1: Write the proportion equation
205,328,535.40 : 307,992,803.10 = 203,912,957.80 : x - Step 2: Convert to fraction form
205,328,535.40/307,992,803.10 = 203,912,957.80/x - Step 3: Cross multiply
205,328,535.40x = 307,992,803.10 × 203,912,957.80 - Step 4: Simplify right side
205,328,535.40x = 62,803,723,461,234,016 - Step 5: Solve for x
x = 62,803,723,461,234,016/205,328,535.40 - Step 6: Final answer
x = 305,869,436.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.