Finding the Fourth Proportional to 13,442,405.80, 20,163,608.70 and 4,466,957.80
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Solution
The fourth proportional to 13,442,405.80, 20,163,608.70 and 4,466,957.80 is: 6,700,436.70
Step by Step Solution
- Step 1: Write the proportion equation
13,442,405.80 : 20,163,608.70 = 4,466,957.80 : x - Step 2: Convert to fraction form
13,442,405.80/20,163,608.70 = 4,466,957.80/x - Step 3: Cross multiply
13,442,405.80x = 20,163,608.70 × 4,466,957.80 - Step 4: Simplify right side
13,442,405.80x = 90,069,989,158,612.86 - Step 5: Solve for x
x = 90,069,989,158,612.86/13,442,405.80 - Step 6: Final answer
x = 6,700,436.70
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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.