Finding the Fourth Proportional to 25,374,997.12, 38,068,988.64 and 8,335,817.68
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Solution
The fourth proportional to 25,374,997.12, 38,068,988.64 and 8,335,817.68 is: 12,505,859.49
Step by Step Solution
- Step 1: Write the proportion equation
25,374,997.12 : 38,068,988.64 = 8,335,817.68 : x - Step 2: Convert to fraction form
25,374,997.12/38,068,988.64 = 8,335,817.68/x - Step 3: Cross multiply
25,374,997.12x = 38,068,988.64 × 8,335,817.68 - Step 4: Simplify right side
25,374,997.12x = 317,336,148,565,031.12 - Step 5: Solve for x
x = 317,336,148,565,031.12/25,374,997.12 - Step 6: Final answer
x = 12,505,859.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.