Finding the Fourth Proportional to 440,449,921.35, 660,674,845.58 and 209,719,496.79
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Solution
The fourth proportional to 440,449,921.35, 660,674,845.58 and 209,719,496.79 is: 314,579,227.83
Step by Step Solution
- Step 1: Write the proportion equation
440,449,921.35 : 660,674,845.58 = 209,719,496.79 : x - Step 2: Convert to fraction form
440,449,921.35/660,674,845.58 = 209,719,496.79/x - Step 3: Cross multiply
440,449,921.35x = 660,674,845.58 × 209,719,496.79 - Step 4: Simplify right side
440,449,921.35x = 138,556,396,155,799,968 - Step 5: Solve for x
x = 138,556,396,155,799,968/440,449,921.35 - Step 6: Final answer
x = 314,579,227.83
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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.