Finding the Fourth Proportional to 8,076,845.16, 11,160,561.39 and 6,139,742.70
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Solution
The fourth proportional to 8,076,845.16, 11,160,561.39 and 6,139,742.70 is: 8,483,878.79
Step by Step Solution
- Step 1: Write the proportion equation
8,076,845.16 : 11,160,561.39 = 6,139,742.70 : x - Step 2: Convert to fraction form
8,076,845.16/11,160,561.39 = 6,139,742.70/x - Step 3: Cross multiply
8,076,845.16x = 11,160,561.39 × 6,139,742.70 - Step 4: Simplify right side
8,076,845.16x = 68,522,975,322,154.36 - Step 5: Solve for x
x = 68,522,975,322,154.36/8,076,845.16 - Step 6: Final answer
x = 8,483,878.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.