Finding the Fourth Proportional to 723,705,120.27, 1,086,016,812.62 and 309,185,059.99
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Solution
The fourth proportional to 723,705,120.27, 1,086,016,812.62 and 309,185,059.99 is: 463,973,742.83
Step by Step Solution
- Step 1: Write the proportion equation
723,705,120.27 : 1,086,016,812.62 = 309,185,059.99 : x - Step 2: Convert to fraction form
723,705,120.27/1,086,016,812.62 = 309,185,059.99/x - Step 3: Cross multiply
723,705,120.27x = 1,086,016,812.62 × 309,185,059.99 - Step 4: Simplify right side
723,705,120.27x = 335,780,173,360,063,296 - Step 5: Solve for x
x = 335,780,173,360,063,296/723,705,120.27 - Step 6: Final answer
x = 463,973,742.83
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1.5x scale
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.