Finding the Fourth Proportional to 13,309,248.36, 18,366,817.98 and 7,197,676.92
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Solution
The fourth proportional to 13,309,248.36, 18,366,817.98 and 7,197,676.92 is: 9,932,824.03
Step by Step Solution
- Step 1: Write the proportion equation
13,309,248.36 : 18,366,817.98 = 7,197,676.92 : x - Step 2: Convert to fraction form
13,309,248.36/18,366,817.98 = 7,197,676.92/x - Step 3: Cross multiply
13,309,248.36x = 18,366,817.98 × 7,197,676.92 - Step 4: Simplify right side
13,309,248.36x = 132,198,421,868,487.03 - Step 5: Solve for x
x = 132,198,421,868,487.03/13,309,248.36 - Step 6: Final answer
x = 9,932,824.03
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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.