Finding the Fourth Proportional to 20,674,918.12, 31,012,375.14 and 5,528,455.96
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Solution
The fourth proportional to 20,674,918.12, 31,012,375.14 and 5,528,455.96 is: 8,292,683.39
Step by Step Solution
- Step 1: Write the proportion equation
20,674,918.12 : 31,012,375.14 = 5,528,455.96 : x - Step 2: Convert to fraction form
20,674,918.12/31,012,375.14 = 5,528,455.96/x - Step 3: Cross multiply
20,674,918.12x = 31,012,375.14 × 5,528,455.96 - Step 4: Simplify right side
20,674,918.12x = 171,450,550,176,488.84 - Step 5: Solve for x
x = 171,450,550,176,488.84/20,674,918.12 - Step 6: Final answer
x = 8,292,683.39
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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.