Finding the Fourth Proportional to 21,606,345.66, 29,821,545.12 and 14,910,076.76
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Solution
The fourth proportional to 21,606,345.66, 29,821,545.12 and 14,910,076.76 is: 20,579,210.09
Step by Step Solution
- Step 1: Write the proportion equation
21,606,345.66 : 29,821,545.12 = 14,910,076.76 : x - Step 2: Convert to fraction form
21,606,345.66/29,821,545.12 = 14,910,076.76/x - Step 3: Cross multiply
21,606,345.66x = 29,821,545.12 × 14,910,076.76 - Step 4: Simplify right side
21,606,345.66x = 444,641,526,691,895.75 - Step 5: Solve for x
x = 444,641,526,691,895.75/21,606,345.66 - Step 6: Final answer
x = 20,579,210.09
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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.