Finding the Fourth Proportional to 28,642,532.16, 39,527,549.79 and 17,635,631.79
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Solution
The fourth proportional to 28,642,532.16, 39,527,549.79 and 17,635,631.79 is: 24,337,698.56
Step by Step Solution
- Step 1: Write the proportion equation
28,642,532.16 : 39,527,549.79 = 17,635,631.79 : x - Step 2: Convert to fraction form
28,642,532.16/39,527,549.79 = 17,635,631.79/x - Step 3: Cross multiply
28,642,532.16x = 39,527,549.79 × 17,635,631.79 - Step 4: Simplify right side
28,642,532.16x = 697,093,313,657,331.75 - Step 5: Solve for x
x = 697,093,313,657,331.75/28,642,532.16 - Step 6: Final answer
x = 24,337,698.56
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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.