Finding the Fourth Proportional to 12,828,117.12, 17,702,805.60 and 7,027,107.84
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Solution
The fourth proportional to 12,828,117.12, 17,702,805.60 and 7,027,107.84 is: 9,697,411.00
Step by Step Solution
- Step 1: Write the proportion equation
12,828,117.12 : 17,702,805.60 = 7,027,107.84 : x - Step 2: Convert to fraction form
12,828,117.12/17,702,805.60 = 7,027,107.84/x - Step 3: Cross multiply
12,828,117.12x = 17,702,805.60 × 7,027,107.84 - Step 4: Simplify right side
12,828,117.12x = 124,399,524,021,755.91 - Step 5: Solve for x
x = 124,399,524,021,755.91/12,828,117.12 - Step 6: Final answer
x = 9,697,411.00
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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.