Finding the Fourth Proportional to 181,916,237.70, 272,874,356.55 and 138,869,516.70
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Solution
The fourth proportional to 181,916,237.70, 272,874,356.55 and 138,869,516.70 is: 208,304,275.05
Step by Step Solution
- Step 1: Write the proportion equation
181,916,237.70 : 272,874,356.55 = 138,869,516.70 : x - Step 2: Convert to fraction form
181,916,237.70/272,874,356.55 = 138,869,516.70/x - Step 3: Cross multiply
181,916,237.70x = 272,874,356.55 × 138,869,516.70 - Step 4: Simplify right side
181,916,237.70x = 37,893,930,013,921,976 - Step 5: Solve for x
x = 37,893,930,013,921,976/181,916,237.70 - Step 6: Final answer
x = 208,304,275.05
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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.