Finding the Fourth Proportional to 14,498,148.18, 20,006,932.38 and 7,971,731.94
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Solution
The fourth proportional to 14,498,148.18, 20,006,932.38 and 7,971,731.94 is: 11,000,708.50
Step by Step Solution
- Step 1: Write the proportion equation
14,498,148.18 : 20,006,932.38 = 7,971,731.94 : x - Step 2: Convert to fraction form
14,498,148.18/20,006,932.38 = 7,971,731.94/x - Step 3: Cross multiply
14,498,148.18x = 20,006,932.38 × 7,971,731.94 - Step 4: Simplify right side
14,498,148.18x = 159,489,901,875,066.22 - Step 5: Solve for x
x = 159,489,901,875,066.22/14,498,148.18 - Step 6: Final answer
x = 11,000,708.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.