Finding the Fourth Proportional to 438,824,629.62, 605,578,797.99 and 237,880,882.62
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Solution
The fourth proportional to 438,824,629.62, 605,578,797.99 and 237,880,882.62 is: 328,276,056.63
Step by Step Solution
- Step 1: Write the proportion equation
438,824,629.62 : 605,578,797.99 = 237,880,882.62 : x - Step 2: Convert to fraction form
438,824,629.62/605,578,797.99 = 237,880,882.62/x - Step 3: Cross multiply
438,824,629.62x = 605,578,797.99 × 237,880,882.62 - Step 4: Simplify right side
438,824,629.62x = 144,055,618,961,819,888 - Step 5: Solve for x
x = 144,055,618,961,819,888/438,824,629.62 - Step 6: Final answer
x = 328,276,056.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.