Finding the Fourth Proportional to 139,175,987,546.26, 208,678,543,984.68 and 54,086,429,402.11
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Solution
The fourth proportional to 139,175,987,546.26, 208,678,543,984.68 and 54,086,429,402.11 is: 81,096,441,533.86
Step by Step Solution
- Step 1: Write the proportion equation
139,175,987,546.26 : 208,678,543,984.68 = 54,086,429,402.11 : x - Step 2: Convert to fraction form
139,175,987,546.26/208,678,543,984.68 = 54,086,429,402.11/x - Step 3: Cross multiply
139,175,987,546.26x = 208,678,543,984.68 × 54,086,429,402.11 - Step 4: Simplify right side
139,175,987,546.26x = 11,286,677,336,962,501,705,728 - Step 5: Solve for x
x = 11,286,677,336,962,501,705,728/139,175,987,546.26 - Step 6: Final answer
x = 81,096,441,533.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.