Finding the Fourth Proportional to 138,075,207.79, 190,543,736.42 and 75,351,305.90
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Solution
The fourth proportional to 138,075,207.79, 190,543,736.42 and 75,351,305.90 is: 103,984,774.67
Step by Step Solution
- Step 1: Write the proportion equation
138,075,207.79 : 190,543,736.42 = 75,351,305.90 : x - Step 2: Convert to fraction form
138,075,207.79/190,543,736.42 = 75,351,305.90/x - Step 3: Cross multiply
138,075,207.79x = 190,543,736.42 × 75,351,305.90 - Step 4: Simplify right side
138,075,207.79x = 14,357,719,369,764,412 - Step 5: Solve for x
x = 14,357,719,369,764,412/138,075,207.79 - Step 6: Final answer
x = 103,984,774.67
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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.