Finding the Fourth Proportional to 18,195,339.36, 27,306,178.20 and 7,118,044.68
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Solution
The fourth proportional to 18,195,339.36, 27,306,178.20 and 7,118,044.68 is: 10,682,218.82
Step by Step Solution
- Step 1: Write the proportion equation
18,195,339.36 : 27,306,178.20 = 7,118,044.68 : x - Step 2: Convert to fraction form
18,195,339.36/27,306,178.20 = 7,118,044.68/x - Step 3: Cross multiply
18,195,339.36x = 27,306,178.20 × 7,118,044.68 - Step 4: Simplify right side
18,195,339.36x = 194,366,596,467,641.97 - Step 5: Solve for x
x = 194,366,596,467,641.97/18,195,339.36 - Step 6: Final answer
x = 10,682,218.82
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1.5x scale
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.