Finding the Fourth Proportional to 18,514,658.19, 27,776,421.36 and 7,725,957.51
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Solution
The fourth proportional to 18,514,658.19, 27,776,421.36 and 7,725,957.51 is: 11,590,786.55
Step by Step Solution
- Step 1: Write the proportion equation
18,514,658.19 : 27,776,421.36 = 7,725,957.51 : x - Step 2: Convert to fraction form
18,514,658.19/27,776,421.36 = 7,725,957.51/x - Step 3: Cross multiply
18,514,658.19x = 27,776,421.36 × 7,725,957.51 - Step 4: Simplify right side
18,514,658.19x = 214,599,451,207,216.41 - Step 5: Solve for x
x = 214,599,451,207,216.41/18,514,658.19 - Step 6: Final answer
x = 11,590,786.55
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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.