Finding the Fourth Proportional to 16,128,688.80, 24,193,033.20 and 7,153,240.80
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Solution
The fourth proportional to 16,128,688.80, 24,193,033.20 and 7,153,240.80 is: 10,729,861.20
Step by Step Solution
- Step 1: Write the proportion equation
16,128,688.80 : 24,193,033.20 = 7,153,240.80 : x - Step 2: Convert to fraction form
16,128,688.80/24,193,033.20 = 7,153,240.80/x - Step 3: Cross multiply
16,128,688.80x = 24,193,033.20 × 7,153,240.80 - Step 4: Simplify right side
16,128,688.80x = 173,058,592,161,994.56 - Step 5: Solve for x
x = 173,058,592,161,994.56/16,128,688.80 - Step 6: Final answer
x = 10,729,861.20
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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.