Finding the Fourth Proportional to 13,211,445.39, 18,239,969.79 and 8,807,374.14
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Solution
The fourth proportional to 13,211,445.39, 18,239,969.79 and 8,807,374.14 is: 12,159,626.26
Step by Step Solution
- Step 1: Write the proportion equation
13,211,445.39 : 18,239,969.79 = 8,807,374.14 : x - Step 2: Convert to fraction form
13,211,445.39/18,239,969.79 = 8,807,374.14/x - Step 3: Cross multiply
13,211,445.39x = 18,239,969.79 × 8,807,374.14 - Step 4: Simplify right side
13,211,445.39x = 160,646,238,242,827.22 - Step 5: Solve for x
x = 160,646,238,242,827.22/13,211,445.39 - Step 6: Final answer
x = 12,159,626.26
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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.