Finding the Fourth Proportional to 79,490,975.60, 119,236,463.40 and 73,751,412.80
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Solution
The fourth proportional to 79,490,975.60, 119,236,463.40 and 73,751,412.80 is: 110,627,119.20
Step by Step Solution
- Step 1: Write the proportion equation
79,490,975.60 : 119,236,463.40 = 73,751,412.80 : x - Step 2: Convert to fraction form
79,490,975.60/119,236,463.40 = 73,751,412.80/x - Step 3: Cross multiply
79,490,975.60x = 119,236,463.40 × 73,751,412.80 - Step 4: Simplify right side
79,490,975.60x = 8,793,857,633,025,492 - Step 5: Solve for x
x = 8,793,857,633,025,492/79,490,975.60 - Step 6: Final answer
x = 110,627,119.20
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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.