Finding the Fourth Proportional to 6,129,920.96, 8,450,453.36 and 4,288,674.80
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Solution
The fourth proportional to 6,129,920.96, 8,450,453.36 and 4,288,674.80 is: 5,912,188.20
Step by Step Solution
- Step 1: Write the proportion equation
6,129,920.96 : 8,450,453.36 = 4,288,674.80 : x - Step 2: Convert to fraction form
6,129,920.96/8,450,453.36 = 4,288,674.80/x - Step 3: Cross multiply
6,129,920.96x = 8,450,453.36 × 4,288,674.80 - Step 4: Simplify right side
6,129,920.96x = 36,241,246,373,607.32 - Step 5: Solve for x
x = 36,241,246,373,607.32/6,129,920.96 - Step 6: Final answer
x = 5,912,188.20
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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.