Finding the Fourth Proportional to 7,180,812.80, 10,771,219.20 and 4,913,331.20
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Solution
The fourth proportional to 7,180,812.80, 10,771,219.20 and 4,913,331.20 is: 7,369,996.80
Step by Step Solution
- Step 1: Write the proportion equation
7,180,812.80 : 10,771,219.20 = 4,913,331.20 : x - Step 2: Convert to fraction form
7,180,812.80/10,771,219.20 = 4,913,331.20/x - Step 3: Cross multiply
7,180,812.80x = 10,771,219.20 × 4,913,331.20 - Step 4: Simplify right side
7,180,812.80x = 52,922,567,357,399.04 - Step 5: Solve for x
x = 52,922,567,357,399.04/7,180,812.80 - Step 6: Final answer
x = 7,369,996.80
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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.