Finding the Fourth Proportional to 13,465,687.25, 18,583,106.97 and 7,963,778.45
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Solution
The fourth proportional to 13,465,687.25, 18,583,106.97 and 7,963,778.45 is: 10,990,285.47
Step by Step Solution
- Step 1: Write the proportion equation
13,465,687.25 : 18,583,106.97 = 7,963,778.45 : x - Step 2: Convert to fraction form
13,465,687.25/18,583,106.97 = 7,963,778.45/x - Step 3: Cross multiply
13,465,687.25x = 18,583,106.97 × 7,963,778.45 - Step 4: Simplify right side
13,465,687.25x = 147,991,746,898,052.72 - Step 5: Solve for x
x = 147,991,746,898,052.72/13,465,687.25 - Step 6: Final answer
x = 10,990,285.47
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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.