Finding the Fourth Proportional to 13,392,953.98, 18,486,209.87 and 8,747,449.19
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Solution
The fourth proportional to 13,392,953.98, 18,486,209.87 and 8,747,449.19 is: 12,074,048.92
Step by Step Solution
- Step 1: Write the proportion equation
13,392,953.98 : 18,486,209.87 = 8,747,449.19 : x - Step 2: Convert to fraction form
13,392,953.98/18,486,209.87 = 8,747,449.19/x - Step 3: Cross multiply
13,392,953.98x = 18,486,209.87 × 8,747,449.19 - Step 4: Simplify right side
13,392,953.98x = 161,707,181,519,459.44 - Step 5: Solve for x
x = 161,707,181,519,459.44/13,392,953.98 - Step 6: Final answer
x = 12,074,048.92
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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.