Finding the Fourth Proportional to 18,320,631.78, 27,486,266.42 and 7,385,177.94
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Solution
The fourth proportional to 18,320,631.78, 27,486,266.42 and 7,385,177.94 is: 11,079,910.94
Step by Step Solution
- Step 1: Write the proportion equation
18,320,631.78 : 27,486,266.42 = 7,385,177.94 : x - Step 2: Convert to fraction form
18,320,631.78/27,486,266.42 = 7,385,177.94/x - Step 3: Cross multiply
18,320,631.78x = 27,486,266.42 × 7,385,177.94 - Step 4: Simplify right side
18,320,631.78x = 202,990,968,417,946.81 - Step 5: Solve for x
x = 202,990,968,417,946.81/18,320,631.78 - Step 6: Final answer
x = 11,079,910.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.