Finding the Fourth Proportional to 418,439,459.34, 577,451,765.75 and 230,289,416.37
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Solution
The fourth proportional to 418,439,459.34, 577,451,765.75 and 230,289,416.37 is: 317,802,317.99
Step by Step Solution
- Step 1: Write the proportion equation
418,439,459.34 : 577,451,765.75 = 230,289,416.37 : x - Step 2: Convert to fraction form
418,439,459.34/577,451,765.75 = 230,289,416.37/x - Step 3: Cross multiply
418,439,459.34x = 577,451,765.75 × 230,289,416.37 - Step 4: Simplify right side
418,439,459.34x = 132,981,030,115,242,016 - Step 5: Solve for x
x = 132,981,030,115,242,016/418,439,459.34 - Step 6: Final answer
x = 317,802,317.99
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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.