Finding the Fourth Proportional to 13,176,860.70, 18,183,074.94 and 8,019,652.26
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Solution
The fourth proportional to 13,176,860.70, 18,183,074.94 and 8,019,652.26 is: 11,066,515.87
Step by Step Solution
- Step 1: Write the proportion equation
13,176,860.70 : 18,183,074.94 = 8,019,652.26 : x - Step 2: Convert to fraction form
13,176,860.70/18,183,074.94 = 8,019,652.26/x - Step 3: Cross multiply
13,176,860.70x = 18,183,074.94 × 8,019,652.26 - Step 4: Simplify right side
13,176,860.70x = 145,821,938,041,679.78 - Step 5: Solve for x
x = 145,821,938,041,679.78/13,176,860.70 - Step 6: Final answer
x = 11,066,515.87
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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.