Finding the Fourth Proportional to 155,066,012.66, 213,988,326.14 and 84,502,235.90
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Solution
The fourth proportional to 155,066,012.66, 213,988,326.14 and 84,502,235.90 is: 116,611,575.32
Step by Step Solution
- Step 1: Write the proportion equation
155,066,012.66 : 213,988,326.14 = 84,502,235.90 : x - Step 2: Convert to fraction form
155,066,012.66/213,988,326.14 = 84,502,235.90/x - Step 3: Cross multiply
155,066,012.66x = 213,988,326.14 × 84,502,235.90 - Step 4: Simplify right side
155,066,012.66x = 18,082,492,015,328,416 - Step 5: Solve for x
x = 18,082,492,015,328,416/155,066,012.66 - Step 6: Final answer
x = 116,611,575.32
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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.