Finding the Fourth Proportional to 12,948,804.93, 17,869,348.09 and 7,147,585.13
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Solution
The fourth proportional to 12,948,804.93, 17,869,348.09 and 7,147,585.13 is: 9,863,665.98
Step by Step Solution
- Step 1: Write the proportion equation
12,948,804.93 : 17,869,348.09 = 7,147,585.13 : x - Step 2: Convert to fraction form
12,948,804.93/17,869,348.09 = 7,147,585.13/x - Step 3: Cross multiply
12,948,804.93x = 17,869,348.09 × 7,147,585.13 - Step 4: Simplify right side
12,948,804.93x = 127,722,686,690,877.91 - Step 5: Solve for x
x = 127,722,686,690,877.91/12,948,804.93 - Step 6: Final answer
x = 9,863,665.98
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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.