Finding the Fourth Proportional to 8,318,964.80, 12,478,447.20 and 2,334,555.20
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Solution
The fourth proportional to 8,318,964.80, 12,478,447.20 and 2,334,555.20 is: 3,501,832.80
Step by Step Solution
- Step 1: Write the proportion equation
8,318,964.80 : 12,478,447.20 = 2,334,555.20 : x - Step 2: Convert to fraction form
8,318,964.80/12,478,447.20 = 2,334,555.20/x - Step 3: Cross multiply
8,318,964.80x = 12,478,447.20 × 2,334,555.20 - Step 4: Simplify right side
8,318,964.80x = 29,131,623,798,685.44 - Step 5: Solve for x
x = 29,131,623,798,685.44/8,318,964.80 - Step 6: Final answer
x = 3,501,832.80
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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.