Finding the Fourth Proportional to 13,194,649.47, 18,207,697.74 and 7,314,227.12
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Solution
The fourth proportional to 13,194,649.47, 18,207,697.74 and 7,314,227.12 is: 10,093,124.26
Step by Step Solution
- Step 1: Write the proportion equation
13,194,649.47 : 18,207,697.74 = 7,314,227.12 : x - Step 2: Convert to fraction form
13,194,649.47/18,207,697.74 = 7,314,227.12/x - Step 3: Cross multiply
13,194,649.47x = 18,207,697.74 × 7,314,227.12 - Step 4: Simplify right side
13,194,649.47x = 133,175,236,602,670.70 - Step 5: Solve for x
x = 133,175,236,602,670.70/13,194,649.47 - Step 6: Final answer
x = 10,093,124.26
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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.