Finding the Fourth Proportional to 38,588,527.36, 53,252,791.68 and 21,186,476.80
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Solution
The fourth proportional to 38,588,527.36, 53,252,791.68 and 21,186,476.80 is: 29,237,680.54
Step by Step Solution
- Step 1: Write the proportion equation
38,588,527.36 : 53,252,791.68 = 21,186,476.80 : x - Step 2: Convert to fraction form
38,588,527.36/53,252,791.68 = 21,186,476.80/x - Step 3: Cross multiply
38,588,527.36x = 53,252,791.68 × 21,186,476.80 - Step 4: Simplify right side
38,588,527.36x = 1,128,239,035,463,553 - Step 5: Solve for x
x = 1,128,239,035,463,553/38,588,527.36 - Step 6: Final answer
x = 29,237,680.54
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1.5x scale
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.