Finding the Fourth Proportional to 620,784,103.26, 856,702,743.66 and 338,541,943.62
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Solution
The fourth proportional to 620,784,103.26, 856,702,743.66 and 338,541,943.62 is: 467,199,160.58
Step by Step Solution
- Step 1: Write the proportion equation
620,784,103.26 : 856,702,743.66 = 338,541,943.62 : x - Step 2: Convert to fraction form
620,784,103.26/856,702,743.66 = 338,541,943.62/x - Step 3: Cross multiply
620,784,103.26x = 856,702,743.66 × 338,541,943.62 - Step 4: Simplify right side
620,784,103.26x = 290,029,811,943,243,008 - Step 5: Solve for x
x = 290,029,811,943,243,008/620,784,103.26 - Step 6: Final answer
x = 467,199,160.58
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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.