Finding the Fourth Proportional to 13,564,383.72, 18,714,219.98 and 8,405,863.08
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Solution
The fourth proportional to 13,564,383.72, 18,714,219.98 and 8,405,863.08 is: 11,597,222.11
Step by Step Solution
- Step 1: Write the proportion equation
13,564,383.72 : 18,714,219.98 = 8,405,863.08 : x - Step 2: Convert to fraction form
13,564,383.72/18,714,219.98 = 8,405,863.08/x - Step 3: Cross multiply
13,564,383.72x = 18,714,219.98 × 8,405,863.08 - Step 4: Simplify right side
13,564,383.72x = 157,309,170,758,851.03 - Step 5: Solve for x
x = 157,309,170,758,851.03/13,564,383.72 - Step 6: Final answer
x = 11,597,222.11
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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.