Finding the Fourth Proportional to 518,412,749.23, 777,619,872.26 and 211,704,862.10
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Solution
The fourth proportional to 518,412,749.23, 777,619,872.26 and 211,704,862.10 is: 317,557,598.78
Step by Step Solution
- Step 1: Write the proportion equation
518,412,749.23 : 777,619,872.26 = 211,704,862.10 : x - Step 2: Convert to fraction form
518,412,749.23/777,619,872.26 = 211,704,862.10/x - Step 3: Cross multiply
518,412,749.23x = 777,619,872.26 × 211,704,862.10 - Step 4: Simplify right side
518,412,749.23x = 164,625,907,823,022,912 - Step 5: Solve for x
x = 164,625,907,823,022,912/518,412,749.23 - Step 6: Final answer
x = 317,557,598.78
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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.