Finding the Fourth Proportional to 372,543,757.68, 514,132,959.78 and 205,279,816.62
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Solution
The fourth proportional to 372,543,757.68, 514,132,959.78 and 205,279,816.62 is: 283,298,585.81
Step by Step Solution
- Step 1: Write the proportion equation
372,543,757.68 : 514,132,959.78 = 205,279,816.62 : x - Step 2: Convert to fraction form
372,543,757.68/514,132,959.78 = 205,279,816.62/x - Step 3: Cross multiply
372,543,757.68x = 514,132,959.78 × 205,279,816.62 - Step 4: Simplify right side
372,543,757.68x = 105,541,119,701,936,240 - Step 5: Solve for x
x = 105,541,119,701,936,240/372,543,757.68 - Step 6: Final answer
x = 283,298,585.81
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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.