Finding the Fourth Proportional to 216,206,463.84, 324,827,074.18 and 138,635,347.20
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Solution
The fourth proportional to 216,206,463.84, 324,827,074.18 and 138,635,347.20 is: 208,284,772.84
Step by Step Solution
- Step 1: Write the proportion equation
216,206,463.84 : 324,827,074.18 = 138,635,347.20 : x - Step 2: Convert to fraction form
216,206,463.84/324,827,074.18 = 138,635,347.20/x - Step 3: Cross multiply
216,206,463.84x = 324,827,074.18 × 138,635,347.20 - Step 4: Simplify right side
216,206,463.84x = 45,032,514,207,664,176 - Step 5: Solve for x
x = 45,032,514,207,664,176/216,206,463.84 - Step 6: Final answer
x = 208,284,772.84
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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.