Finding the Fourth Proportional to 126,635,747.95, 189,986,371.91 and 74,157,738.44
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Solution
The fourth proportional to 126,635,747.95, 189,986,371.91 and 74,157,738.44 is: 111,255,786.00
Step by Step Solution
- Step 1: Write the proportion equation
126,635,747.95 : 189,986,371.91 = 74,157,738.44 : x - Step 2: Convert to fraction form
126,635,747.95/189,986,371.91 = 74,157,738.44/x - Step 3: Cross multiply
126,635,747.95x = 189,986,371.91 × 74,157,738.44 - Step 4: Simplify right side
126,635,747.95x = 14,088,959,673,945,624 - Step 5: Solve for x
x = 14,088,959,673,945,624/126,635,747.95 - Step 6: Final answer
x = 111,255,786.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.