Finding the Fourth Proportional to 161,966,881.67, 242,975,516.81 and 52,766,631.09
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Solution
The fourth proportional to 161,966,881.67, 242,975,516.81 and 52,766,631.09 is: 79,158,154.60
Step by Step Solution
- Step 1: Write the proportion equation
161,966,881.67 : 242,975,516.81 = 52,766,631.09 : x - Step 2: Convert to fraction form
161,966,881.67/242,975,516.81 = 52,766,631.09/x - Step 3: Cross multiply
161,966,881.67x = 242,975,516.81 × 52,766,631.09 - Step 4: Simplify right side
161,966,881.67x = 12,820,999,459,151,532 - Step 5: Solve for x
x = 12,820,999,459,151,532/161,966,881.67 - Step 6: Final answer
x = 79,158,154.60
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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.