Finding the Fourth Proportional to 8,543,312.40, 12,814,968.60 and 5,358,262.80
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Solution
The fourth proportional to 8,543,312.40, 12,814,968.60 and 5,358,262.80 is: 8,037,394.20
Step by Step Solution
- Step 1: Write the proportion equation
8,543,312.40 : 12,814,968.60 = 5,358,262.80 : x - Step 2: Convert to fraction form
8,543,312.40/12,814,968.60 = 5,358,262.80/x - Step 3: Cross multiply
8,543,312.40x = 12,814,968.60 × 5,358,262.80 - Step 4: Simplify right side
8,543,312.40x = 68,665,969,532,548.08 - Step 5: Solve for x
x = 68,665,969,532,548.08/8,543,312.40 - Step 6: Final answer
x = 8,037,394.20
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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.