Finding the Fourth Proportional to 8,989,942.90, 13,484,914.35 and 8,840,643.70
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Solution
The fourth proportional to 8,989,942.90, 13,484,914.35 and 8,840,643.70 is: 13,260,965.55
Step by Step Solution
- Step 1: Write the proportion equation
8,989,942.90 : 13,484,914.35 = 8,840,643.70 : x - Step 2: Convert to fraction form
8,989,942.90/13,484,914.35 = 8,840,643.70/x - Step 3: Cross multiply
8,989,942.90x = 13,484,914.35 × 8,840,643.70 - Step 4: Simplify right side
8,989,942.90x = 119,215,323,093,367.08 - Step 5: Solve for x
x = 119,215,323,093,367.08/8,989,942.90 - Step 6: Final answer
x = 13,260,965.55
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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.