Finding the Fourth Proportional to 391,769,635.67, 587,008,748.42 and 227,546,395.05
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Solution
The fourth proportional to 391,769,635.67, 587,008,748.42 and 227,546,395.05 is: 340,944,556.20
Step by Step Solution
- Step 1: Write the proportion equation
391,769,635.67 : 587,008,748.42 = 227,546,395.05 : x - Step 2: Convert to fraction form
391,769,635.67/587,008,748.42 = 227,546,395.05/x - Step 3: Cross multiply
391,769,635.67x = 587,008,748.42 × 227,546,395.05 - Step 4: Simplify right side
391,769,635.67x = 133,571,724,564,645,648 - Step 5: Solve for x
x = 133,571,724,564,645,648/391,769,635.67 - Step 6: Final answer
x = 340,944,556.20
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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.