Finding the Fourth Proportional to 399,543,643.36, 599,316,235.96 and 154,015,900.26
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Solution
The fourth proportional to 399,543,643.36, 599,316,235.96 and 154,015,900.26 is: 231,024,147.56
Step by Step Solution
- Step 1: Write the proportion equation
399,543,643.36 : 599,316,235.96 = 154,015,900.26 : x - Step 2: Convert to fraction form
399,543,643.36/599,316,235.96 = 154,015,900.26/x - Step 3: Cross multiply
399,543,643.36x = 599,316,235.96 × 154,015,900.26 - Step 4: Simplify right side
399,543,643.36x = 92,304,229,621,813,984 - Step 5: Solve for x
x = 92,304,229,621,813,984/399,543,643.36 - Step 6: Final answer
x = 231,024,147.56
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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.