Finding the Fourth Proportional to 12,493,776.09, 18,706,855.55 and 8,165,042.13
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Solution
The fourth proportional to 12,493,776.09, 18,706,855.55 and 8,165,042.13 is: 12,225,468.31
Step by Step Solution
- Step 1: Write the proportion equation
12,493,776.09 : 18,706,855.55 = 8,165,042.13 : x - Step 2: Convert to fraction form
12,493,776.09/18,706,855.55 = 8,165,042.13/x - Step 3: Cross multiply
12,493,776.09x = 18,706,855.55 × 8,165,042.13 - Step 4: Simplify right side
12,493,776.09x = 152,742,263,644,749.12 - Step 5: Solve for x
x = 152,742,263,644,749.12/12,493,776.09 - Step 6: Final answer
x = 12,225,468.31
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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.