Finding the Fourth Proportional to 11,072,312.49, 15,276,909.65 and 6,486,173.49
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Solution
The fourth proportional to 11,072,312.49, 15,276,909.65 and 6,486,173.49 is: 8,949,231.38
Step by Step Solution
- Step 1: Write the proportion equation
11,072,312.49 : 15,276,909.65 = 6,486,173.49 : x - Step 2: Convert to fraction form
11,072,312.49/15,276,909.65 = 6,486,173.49/x - Step 3: Cross multiply
11,072,312.49x = 15,276,909.65 × 6,486,173.49 - Step 4: Simplify right side
11,072,312.49x = 99,088,686,348,524.31 - Step 5: Solve for x
x = 99,088,686,348,524.31/11,072,312.49 - Step 6: Final answer
x = 8,949,231.38
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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.