Finding the Fourth Proportional to 13,720,725.20, 18,935,764.68 and 7,611,122
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Solution
The fourth proportional to 13,720,725.20, 18,935,764.68 and 7,611,122 is: 10,503,994.00
Step by Step Solution
- Step 1: Write the proportion equation
13,720,725.20 : 18,935,764.68 = 7,611,122 : x - Step 2: Convert to fraction form
13,720,725.20/18,935,764.68 = 7,611,122/x - Step 3: Cross multiply
13,720,725.20x = 18,935,764.68 × 7,611,122 - Step 4: Simplify right side
13,720,725.20x = 144,122,415,142,770.97 - Step 5: Solve for x
x = 144,122,415,142,770.97/13,720,725.20 - Step 6: Final answer
x = 10,503,994.00
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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.