Finding the Fourth Proportional to 1,515,955,612.80, 2,273,933,419.20 and 367,098,268.80
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Solution
The fourth proportional to 1,515,955,612.80, 2,273,933,419.20 and 367,098,268.80 is: 550,647,403.20
Step by Step Solution
- Step 1: Write the proportion equation
1,515,955,612.80 : 2,273,933,419.20 = 367,098,268.80 : x - Step 2: Convert to fraction form
1,515,955,612.80/2,273,933,419.20 = 367,098,268.80/x - Step 3: Cross multiply
1,515,955,612.80x = 2,273,933,419.20 × 367,098,268.80 - Step 4: Simplify right side
1,515,955,612.80x = 834,757,021,554,784,640 - Step 5: Solve for x
x = 834,757,021,554,784,640/1,515,955,612.80 - Step 6: Final answer
x = 550,647,403.20
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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.