Finding the Fourth Proportional to 547,512,350.21, 821,268,534.80 and 132,986,378.28
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Solution
The fourth proportional to 547,512,350.21, 821,268,534.80 and 132,986,378.28 is: 199,479,569.72
Step by Step Solution
- Step 1: Write the proportion equation
547,512,350.21 : 821,268,534.80 = 132,986,378.28 : x - Step 2: Convert to fraction form
547,512,350.21/821,268,534.80 = 132,986,378.28/x - Step 3: Cross multiply
547,512,350.21x = 821,268,534.80 × 132,986,378.28 - Step 4: Simplify right side
547,512,350.21x = 109,217,528,037,130,912 - Step 5: Solve for x
x = 109,217,528,037,130,912/547,512,350.21 - Step 6: Final answer
x = 199,479,569.72
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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.