Finding the Fourth Proportional to 216,206,464.84, 324,827,075.68 and 138,635,348.20
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Solution
The fourth proportional to 216,206,464.84, 324,827,075.68 and 138,635,348.20 is: 208,284,774.35
Step by Step Solution
- Step 1: Write the proportion equation
216,206,464.84 : 324,827,075.68 = 138,635,348.20 : x - Step 2: Convert to fraction form
216,206,464.84/324,827,075.68 = 138,635,348.20/x - Step 3: Cross multiply
216,206,464.84x = 324,827,075.68 × 138,635,348.20 - Step 4: Simplify right side
216,206,464.84x = 45,032,514,741,684,552 - Step 5: Solve for x
x = 45,032,514,741,684,552/216,206,464.84 - Step 6: Final answer
x = 208,284,774.35
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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.