Finding the Fourth Proportional to 14,778,842.92, 20,394,394.07 and 8,163,312.82
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Solution
The fourth proportional to 14,778,842.92, 20,394,394.07 and 8,163,312.82 is: 11,265,145.68
Step by Step Solution
- Step 1: Write the proportion equation
14,778,842.92 : 20,394,394.07 = 8,163,312.82 : x - Step 2: Convert to fraction form
14,778,842.92/20,394,394.07 = 8,163,312.82/x - Step 3: Cross multiply
14,778,842.92x = 20,394,394.07 × 8,163,312.82 - Step 4: Simplify right side
14,778,842.92x = 166,485,818,475,960.44 - Step 5: Solve for x
x = 166,485,818,475,960.44/14,778,842.92 - Step 6: Final answer
x = 11,265,145.68
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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.