Finding the Fourth Proportional to 476,990,687.19, 715,486,280.31 and 149,491,707.09
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Solution
The fourth proportional to 476,990,687.19, 715,486,280.31 and 149,491,707.09 is: 224,237,638.84
Step by Step Solution
- Step 1: Write the proportion equation
476,990,687.19 : 715,486,280.31 = 149,491,707.09 : x - Step 2: Convert to fraction form
476,990,687.19/715,486,280.31 = 149,491,707.09/x - Step 3: Cross multiply
476,990,687.19x = 715,486,280.31 × 149,491,707.09 - Step 4: Simplify right side
476,990,687.19x = 106,959,265,443,016,144 - Step 5: Solve for x
x = 106,959,265,443,016,144/476,990,687.19 - Step 6: Final answer
x = 224,237,638.84
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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.