Finding the Fourth Proportional to 66,905,198.58, 100,362,634.81 and 28,004,526.99
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Solution
The fourth proportional to 66,905,198.58, 100,362,634.81 and 28,004,526.99 is: 42,008,815.09
Step by Step Solution
- Step 1: Write the proportion equation
66,905,198.58 : 100,362,634.81 = 28,004,526.99 : x - Step 2: Convert to fraction form
66,905,198.58/100,362,634.81 = 28,004,526.99/x - Step 3: Cross multiply
66,905,198.58x = 100,362,634.81 × 28,004,526.99 - Step 4: Simplify right side
66,905,198.58x = 2,810,608,115,184,136 - Step 5: Solve for x
x = 2,810,608,115,184,136/66,905,198.58 - Step 6: Final answer
x = 42,008,815.09
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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.