Finding the Fourth Proportional to 13,708,338.68, 18,919,591.62 and 8,748,919.82
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Solution
The fourth proportional to 13,708,338.68, 18,919,591.62 and 8,748,919.82 is: 12,074,839.55
Step by Step Solution
- Step 1: Write the proportion equation
13,708,338.68 : 18,919,591.62 = 8,748,919.82 : x - Step 2: Convert to fraction form
13,708,338.68/18,919,591.62 = 8,748,919.82/x - Step 3: Cross multiply
13,708,338.68x = 18,919,591.62 × 8,748,919.82 - Step 4: Simplify right side
13,708,338.68x = 165,525,990,110,523.94 - Step 5: Solve for x
x = 165,525,990,110,523.94/13,708,338.68 - Step 6: Final answer
x = 12,074,839.55
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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.