Finding the Fourth Proportional to 347,843,897.80, 521,765,846.70 and 330,837,785.80
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Solution
The fourth proportional to 347,843,897.80, 521,765,846.70 and 330,837,785.80 is: 496,256,678.70
Step by Step Solution
- Step 1: Write the proportion equation
347,843,897.80 : 521,765,846.70 = 330,837,785.80 : x - Step 2: Convert to fraction form
347,843,897.80/521,765,846.70 = 330,837,785.80/x - Step 3: Cross multiply
347,843,897.80x = 521,765,846.70 × 330,837,785.80 - Step 4: Simplify right side
347,843,897.80x = 172,619,857,428,290,240 - Step 5: Solve for x
x = 172,619,857,428,290,240/347,843,897.80 - Step 6: Final answer
x = 496,256,678.70
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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.