Finding the Fourth Proportional to 19,965,780.68, 29,951,980.22 and 7,008,569.41
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Solution
The fourth proportional to 19,965,780.68, 29,951,980.22 and 7,008,569.41 is: 10,514,015.74
Step by Step Solution
- Step 1: Write the proportion equation
19,965,780.68 : 29,951,980.22 = 7,008,569.41 : x - Step 2: Convert to fraction form
19,965,780.68/29,951,980.22 = 7,008,569.41/x - Step 3: Cross multiply
19,965,780.68x = 29,951,980.22 × 7,008,569.41 - Step 4: Simplify right side
19,965,780.68x = 209,920,532,228,894.25 - Step 5: Solve for x
x = 209,920,532,228,894.25/19,965,780.68 - Step 6: Final answer
x = 10,514,015.74
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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.