Finding the Fourth Proportional to 27,623,762.79, 38,128,144.79 and 16,317,853.97
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Solution
The fourth proportional to 27,623,762.79, 38,128,144.79 and 16,317,853.97 is: 22,522,981.51
Step by Step Solution
- Step 1: Write the proportion equation
27,623,762.79 : 38,128,144.79 = 16,317,853.97 : x - Step 2: Convert to fraction form
27,623,762.79/38,128,144.79 = 16,317,853.97/x - Step 3: Cross multiply
27,623,762.79x = 38,128,144.79 × 16,317,853.97 - Step 4: Simplify right side
27,623,762.79x = 622,169,498,558,006.25 - Step 5: Solve for x
x = 622,169,498,558,006.25/27,623,762.79 - Step 6: Final answer
x = 22,522,981.51
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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.