Finding the Fourth Proportional to 21,504,587.80, 32,256,881.70 and 16,129,816.60
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Solution
The fourth proportional to 21,504,587.80, 32,256,881.70 and 16,129,816.60 is: 24,194,724.90
Step by Step Solution
- Step 1: Write the proportion equation
21,504,587.80 : 32,256,881.70 = 16,129,816.60 : x - Step 2: Convert to fraction form
21,504,587.80/32,256,881.70 = 16,129,816.60/x - Step 3: Cross multiply
21,504,587.80x = 32,256,881.70 × 16,129,816.60 - Step 4: Simplify right side
21,504,587.80x = 520,297,585,908,896.19 - Step 5: Solve for x
x = 520,297,585,908,896.19/21,504,587.80 - Step 6: Final answer
x = 24,194,724.90
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1.5x scale
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.