Finding the Fourth Proportional to 481,056,138.36, 721,857,173.16 and 259,724,526.72
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Solution
The fourth proportional to 481,056,138.36, 721,857,173.16 and 259,724,526.72 is: 389,734,165.53
Step by Step Solution
- Step 1: Write the proportion equation
481,056,138.36 : 721,857,173.16 = 259,724,526.72 : x - Step 2: Convert to fraction form
481,056,138.36/721,857,173.16 = 259,724,526.72/x - Step 3: Cross multiply
481,056,138.36x = 721,857,173.16 × 259,724,526.72 - Step 4: Simplify right side
481,056,138.36x = 187,484,012,658,418,080 - Step 5: Solve for x
x = 187,484,012,658,418,080/481,056,138.36 - Step 6: Final answer
x = 389,734,165.53
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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.