Finding the Fourth Proportional to 14,778,845.19, 20,394,397.17 and 8,163,315.09
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Solution
The fourth proportional to 14,778,845.19, 20,394,397.17 and 8,163,315.09 is: 11,265,148.80
Step by Step Solution
- Step 1: Write the proportion equation
14,778,845.19 : 20,394,397.17 = 8,163,315.09 : x - Step 2: Convert to fraction form
14,778,845.19/20,394,397.17 = 8,163,315.09/x - Step 3: Cross multiply
14,778,845.19x = 20,394,397.17 × 8,163,315.09 - Step 4: Simplify right side
14,778,845.19x = 166,485,890,169,314.31 - Step 5: Solve for x
x = 166,485,890,169,314.31/14,778,845.19 - Step 6: Final answer
x = 11,265,148.80
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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.