Finding the Fourth Proportional to 20,774,220.44, 31,161,965.48 and 7,127,175.38
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Solution
The fourth proportional to 20,774,220.44, 31,161,965.48 and 7,127,175.38 is: 10,690,980.86
Step by Step Solution
- Step 1: Write the proportion equation
20,774,220.44 : 31,161,965.48 = 7,127,175.38 : x - Step 2: Convert to fraction form
20,774,220.44/31,161,965.48 = 7,127,175.38/x - Step 3: Cross multiply
20,774,220.44x = 31,161,965.48 × 7,127,175.38 - Step 4: Simplify right side
20,774,220.44x = 222,096,793,161,465.88 - Step 5: Solve for x
x = 222,096,793,161,465.88/20,774,220.44 - Step 6: Final answer
x = 10,690,980.86
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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.