Finding the Fourth Proportional to 28,596,509.76, 39,463,463.88 and 15,543,760.62
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Solution
The fourth proportional to 28,596,509.76, 39,463,463.88 and 15,543,760.62 is: 21,450,542.07
Step by Step Solution
- Step 1: Write the proportion equation
28,596,509.76 : 39,463,463.88 = 15,543,760.62 : x - Step 2: Convert to fraction form
28,596,509.76/39,463,463.88 = 15,543,760.62/x - Step 3: Cross multiply
28,596,509.76x = 39,463,463.88 × 15,543,760.62 - Step 4: Simplify right side
28,596,509.76x = 613,410,635,786,736.38 - Step 5: Solve for x
x = 613,410,635,786,736.38/28,596,509.76 - Step 6: Final answer
x = 21,450,542.07
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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.