Finding the Fourth Proportional to 8,613,623.18, 11,878,813.36 and 6,286,832.70
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Solution
The fourth proportional to 8,613,623.18, 11,878,813.36 and 6,286,832.70 is: 8,669,999.92
Step by Step Solution
- Step 1: Write the proportion equation
8,613,623.18 : 11,878,813.36 = 6,286,832.70 : x - Step 2: Convert to fraction form
8,613,623.18/11,878,813.36 = 6,286,832.70/x - Step 3: Cross multiply
8,613,623.18x = 11,878,813.36 × 6,286,832.70 - Step 4: Simplify right side
8,613,623.18x = 74,680,112,268,844.88 - Step 5: Solve for x
x = 74,680,112,268,844.88/8,613,623.18 - Step 6: Final answer
x = 8,669,999.92
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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.