Finding the Fourth Proportional to 6,127,272.30, 9,190,908.45 and 1,639,548.30
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Solution
The fourth proportional to 6,127,272.30, 9,190,908.45 and 1,639,548.30 is: 2,459,322.45
Step by Step Solution
- Step 1: Write the proportion equation
6,127,272.30 : 9,190,908.45 = 1,639,548.30 : x - Step 2: Convert to fraction form
6,127,272.30/9,190,908.45 = 1,639,548.30/x - Step 3: Cross multiply
6,127,272.30x = 9,190,908.45 × 1,639,548.30 - Step 4: Simplify right side
6,127,272.30x = 15,068,938,324,653.13 - Step 5: Solve for x
x = 15,068,938,324,653.13/6,127,272.30 - Step 6: Final answer
x = 2,459,322.45
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Double scale
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Similar ratio
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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.