Finding the Fourth Proportional to 5,437,898.61, 7,504,128.27 and 2,990,502.09
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Solution
The fourth proportional to 5,437,898.61, 7,504,128.27 and 2,990,502.09 is: 4,126,798.40
Step by Step Solution
- Step 1: Write the proportion equation
5,437,898.61 : 7,504,128.27 = 2,990,502.09 : x - Step 2: Convert to fraction form
5,437,898.61/7,504,128.27 = 2,990,502.09/x - Step 3: Cross multiply
5,437,898.61x = 7,504,128.27 × 2,990,502.09 - Step 4: Simplify right side
5,437,898.61x = 22,441,111,275,063.08 - Step 5: Solve for x
x = 22,441,111,275,063.08/5,437,898.61 - Step 6: Final answer
x = 4,126,798.40
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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.