Finding the Fourth Proportional to 471,849,680.90, 651,431,878.49 and 419,494,106.48
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Solution
The fourth proportional to 471,849,680.90, 651,431,878.49 and 419,494,106.48 is: 579,150,193.09
Step by Step Solution
- Step 1: Write the proportion equation
471,849,680.90 : 651,431,878.49 = 419,494,106.48 : x - Step 2: Convert to fraction form
471,849,680.90/651,431,878.49 = 419,494,106.48/x - Step 3: Cross multiply
471,849,680.90x = 651,431,878.49 × 419,494,106.48 - Step 4: Simplify right side
471,849,680.90x = 273,271,833,797,542,048 - Step 5: Solve for x
x = 273,271,833,797,542,048/471,849,680.90 - Step 6: Final answer
x = 579,150,193.09
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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.