Finding the Fourth Proportional to 18,869,451.93, 28,298,704.68 and 7,352,350.29
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Solution
The fourth proportional to 18,869,451.93, 28,298,704.68 and 7,352,350.29 is: 11,026,392.83
Step by Step Solution
- Step 1: Write the proportion equation
18,869,451.93 : 28,298,704.68 = 7,352,350.29 : x - Step 2: Convert to fraction form
18,869,451.93/28,298,704.68 = 7,352,350.29/x - Step 3: Cross multiply
18,869,451.93x = 28,298,704.68 × 7,352,350.29 - Step 4: Simplify right side
18,869,451.93x = 208,061,989,560,622.34 - Step 5: Solve for x
x = 208,061,989,560,622.34/18,869,451.93 - Step 6: Final answer
x = 11,026,392.83
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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.