Finding the Fourth Proportional to 18,820,770.48, 28,219,767.84 and 8,444,089.44
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Solution
The fourth proportional to 18,820,770.48, 28,219,767.84 and 8,444,089.44 is: 12,661,024.90
Step by Step Solution
- Step 1: Write the proportion equation
18,820,770.48 : 28,219,767.84 = 8,444,089.44 : x - Step 2: Convert to fraction form
18,820,770.48/28,219,767.84 = 8,444,089.44/x - Step 3: Cross multiply
18,820,770.48x = 28,219,767.84 × 8,444,089.44 - Step 4: Simplify right side
18,820,770.48x = 238,290,243,616,995.59 - Step 5: Solve for x
x = 238,290,243,616,995.59/18,820,770.48 - Step 6: Final answer
x = 12,661,024.90
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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.