Finding the Fourth Proportional to 32,128,290.72, 44,373,545.94 and 21,656,245.80
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Solution
The fourth proportional to 32,128,290.72, 44,373,545.94 and 21,656,245.80 is: 29,910,225.42
Step by Step Solution
- Step 1: Write the proportion equation
32,128,290.72 : 44,373,545.94 = 21,656,245.80 : x - Step 2: Convert to fraction form
32,128,290.72/44,373,545.94 = 21,656,245.80/x - Step 3: Cross multiply
32,128,290.72x = 44,373,545.94 × 21,656,245.80 - Step 4: Simplify right side
32,128,290.72x = 960,964,417,894,232 - Step 5: Solve for x
x = 960,964,417,894,232/32,128,290.72 - Step 6: Final answer
x = 29,910,225.42
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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.