Finding the Fourth Proportional to 6,126,039.20, 9,189,058.80 and 1,638,315.20
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Solution
The fourth proportional to 6,126,039.20, 9,189,058.80 and 1,638,315.20 is: 2,457,472.80
Step by Step Solution
- Step 1: Write the proportion equation
6,126,039.20 : 9,189,058.80 = 1,638,315.20 : x - Step 2: Convert to fraction form
6,126,039.20/9,189,058.80 = 1,638,315.20/x - Step 3: Cross multiply
6,126,039.20x = 9,189,058.80 × 1,638,315.20 - Step 4: Simplify right side
6,126,039.20x = 15,054,574,705,733.76 - Step 5: Solve for x
x = 15,054,574,705,733.76/6,126,039.20 - Step 6: Final answer
x = 2,457,472.80
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1.5x scale
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.