Finding the Fourth Proportional to 19,764,725.84, 29,655,609.96 and 7,642,723.76
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Solution
The fourth proportional to 19,764,725.84, 29,655,609.96 and 7,642,723.76 is: 11,467,380.66
Step by Step Solution
- Step 1: Write the proportion equation
19,764,725.84 : 29,655,609.96 = 7,642,723.76 : x - Step 2: Convert to fraction form
19,764,725.84/29,655,609.96 = 7,642,723.76/x - Step 3: Cross multiply
19,764,725.84x = 29,655,609.96 × 7,642,723.76 - Step 4: Simplify right side
19,764,725.84x = 226,649,634,858,584.66 - Step 5: Solve for x
x = 226,649,634,858,584.66/19,764,725.84 - Step 6: Final answer
x = 11,467,380.66
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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.