Finding the Fourth Proportional to 19,683,128.64, 27,162,734.40 and 10,981,303.14
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Solution
The fourth proportional to 19,683,128.64, 27,162,734.40 and 10,981,303.14 is: 15,154,207.75
Step by Step Solution
- Step 1: Write the proportion equation
19,683,128.64 : 27,162,734.40 = 10,981,303.14 : x - Step 2: Convert to fraction form
19,683,128.64/27,162,734.40 = 10,981,303.14/x - Step 3: Cross multiply
19,683,128.64x = 27,162,734.40 × 10,981,303.14 - Step 4: Simplify right side
19,683,128.64x = 298,282,220,557,706 - Step 5: Solve for x
x = 298,282,220,557,706/19,683,128.64 - Step 6: Final answer
x = 15,154,207.75
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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.