Finding the Fourth Proportional to 12,966,245.16, 17,893,424.70 and 7,165,026.94
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Solution
The fourth proportional to 12,966,245.16, 17,893,424.70 and 7,165,026.94 is: 9,887,740.70
Step by Step Solution
- Step 1: Write the proportion equation
12,966,245.16 : 17,893,424.70 = 7,165,026.94 : x - Step 2: Convert to fraction form
12,966,245.16/17,893,424.70 = 7,165,026.94/x - Step 3: Cross multiply
12,966,245.16x = 17,893,424.70 × 7,165,026.94 - Step 4: Simplify right side
12,966,245.16x = 128,206,870,024,361.42 - Step 5: Solve for x
x = 128,206,870,024,361.42/12,966,245.16 - Step 6: Final answer
x = 9,887,740.70
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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.