Finding the Fourth Proportional to 285,368,801.41, 393,810,961.49 and 154,988,609.41
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Solution
The fourth proportional to 285,368,801.41, 393,810,961.49 and 154,988,609.41 is: 213,885,375.66
Step by Step Solution
- Step 1: Write the proportion equation
285,368,801.41 : 393,810,961.49 = 154,988,609.41 : x - Step 2: Convert to fraction form
285,368,801.41/393,810,961.49 = 154,988,609.41/x - Step 3: Cross multiply
285,368,801.41x = 393,810,961.49 × 154,988,609.41 - Step 4: Simplify right side
285,368,801.41x = 61,036,213,291,750,160 - Step 5: Solve for x
x = 61,036,213,291,750,160/285,368,801.41 - Step 6: Final answer
x = 213,885,375.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.