Finding the Fourth Proportional to 12,405,221.74, 18,607,837.47 and 3,886,220.08
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Solution
The fourth proportional to 12,405,221.74, 18,607,837.47 and 3,886,220.08 is: 5,829,331.64
Step by Step Solution
- Step 1: Write the proportion equation
12,405,221.74 : 18,607,837.47 = 3,886,220.08 : x - Step 2: Convert to fraction form
12,405,221.74/18,607,837.47 = 3,886,220.08/x - Step 3: Cross multiply
12,405,221.74x = 18,607,837.47 × 3,886,220.08 - Step 4: Simplify right side
12,405,221.74x = 72,314,151,621,290.39 - Step 5: Solve for x
x = 72,314,151,621,290.39/12,405,221.74 - Step 6: Final answer
x = 5,829,331.64
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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.