Finding the Fourth Proportional to 14,528,407.50, 20,049,202.35 and 8,420,378.94
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Solution
The fourth proportional to 14,528,407.50, 20,049,202.35 and 8,420,378.94 is: 11,620,122.94
Step by Step Solution
- Step 1: Write the proportion equation
14,528,407.50 : 20,049,202.35 = 8,420,378.94 : x - Step 2: Convert to fraction form
14,528,407.50/20,049,202.35 = 8,420,378.94/x - Step 3: Cross multiply
14,528,407.50x = 20,049,202.35 × 8,420,378.94 - Step 4: Simplify right side
14,528,407.50x = 168,821,881,231,738.50 - Step 5: Solve for x
x = 168,821,881,231,738.50/14,528,407.50 - Step 6: Final answer
x = 11,620,122.94
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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.