Finding the Fourth Proportional to 343,873,277.20, 515,809,915.80 and 299,083,517.20
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Solution
The fourth proportional to 343,873,277.20, 515,809,915.80 and 299,083,517.20 is: 448,625,275.80
Step by Step Solution
- Step 1: Write the proportion equation
343,873,277.20 : 515,809,915.80 = 299,083,517.20 : x - Step 2: Convert to fraction form
343,873,277.20/515,809,915.80 = 299,083,517.20/x - Step 3: Cross multiply
343,873,277.20x = 515,809,915.80 × 299,083,517.20 - Step 4: Simplify right side
343,873,277.20x = 154,270,243,824,099,840 - Step 5: Solve for x
x = 154,270,243,824,099,840/343,873,277.20 - Step 6: Final answer
x = 448,625,275.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.