Finding the Fourth Proportional to 212,198,683.13, 292,834,196.22 and 118,110,804.62
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Solution
The fourth proportional to 212,198,683.13, 292,834,196.22 and 118,110,804.62 is: 162,992,917.89
Step by Step Solution
- Step 1: Write the proportion equation
212,198,683.13 : 292,834,196.22 = 118,110,804.62 : x - Step 2: Convert to fraction form
212,198,683.13/292,834,196.22 = 118,110,804.62/x - Step 3: Cross multiply
212,198,683.13x = 292,834,196.22 × 118,110,804.62 - Step 4: Simplify right side
212,198,683.13x = 34,586,882,535,013,992 - Step 5: Solve for x
x = 34,586,882,535,013,992/212,198,683.13 - Step 6: Final answer
x = 162,992,917.89
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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.