Finding the Fourth Proportional to 13,990,071.68, 20,985,856.32 and 4,406,197.12
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Solution
The fourth proportional to 13,990,071.68, 20,985,856.32 and 4,406,197.12 is: 6,609,531.52
Step by Step Solution
- Step 1: Write the proportion equation
13,990,071.68 : 20,985,856.32 = 4,406,197.12 : x - Step 2: Convert to fraction form
13,990,071.68/20,985,856.32 = 4,406,197.12/x - Step 3: Cross multiply
13,990,071.68x = 20,985,856.32 × 4,406,197.12 - Step 4: Simplify right side
13,990,071.68x = 92,467,819,677,917.80 - Step 5: Solve for x
x = 92,467,819,677,917.80/13,990,071.68 - Step 6: Final answer
x = 6,609,531.52
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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.