Finding the Fourth Proportional to 13,634,207.28, 18,815,599.35 and 7,523,029.44
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Solution
The fourth proportional to 13,634,207.28, 18,815,599.35 and 7,523,029.44 is: 10,381,997.64
Step by Step Solution
- Step 1: Write the proportion equation
13,634,207.28 : 18,815,599.35 = 7,523,029.44 : x - Step 2: Convert to fraction form
13,634,207.28/18,815,599.35 = 7,523,029.44/x - Step 3: Cross multiply
13,634,207.28x = 18,815,599.35 × 7,523,029.44 - Step 4: Simplify right side
13,634,207.28x = 141,550,307,841,294.88 - Step 5: Solve for x
x = 141,550,307,841,294.88/13,634,207.28 - Step 6: Final answer
x = 10,381,997.64
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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.