Finding the Fourth Proportional to 121,993,307.64, 168,351,974.22 and 66,239,184.96
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Solution
The fourth proportional to 121,993,307.64, 168,351,974.22 and 66,239,184.96 is: 91,410,732.07
Step by Step Solution
- Step 1: Write the proportion equation
121,993,307.64 : 168,351,974.22 = 66,239,184.96 : x - Step 2: Convert to fraction form
121,993,307.64/168,351,974.22 = 66,239,184.96/x - Step 3: Cross multiply
121,993,307.64x = 168,351,974.22 × 66,239,184.96 - Step 4: Simplify right side
121,993,307.64x = 11,151,497,558,739,732 - Step 5: Solve for x
x = 11,151,497,558,739,732/121,993,307.64 - Step 6: Final answer
x = 91,410,732.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.