Finding the Fourth Proportional to 318,629,122.80, 477,943,684.20 and 318,629,122.80
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Solution
The fourth proportional to 318,629,122.80, 477,943,684.20 and 318,629,122.80 is: 477,943,684.20
Step by Step Solution
- Step 1: Write the proportion equation
318,629,122.80 : 477,943,684.20 = 318,629,122.80 : x - Step 2: Convert to fraction form
318,629,122.80/477,943,684.20 = 318,629,122.80/x - Step 3: Cross multiply
318,629,122.80x = 477,943,684.20 × 318,629,122.80 - Step 4: Simplify right side
318,629,122.80x = 152,286,776,844,446,208 - Step 5: Solve for x
x = 152,286,776,844,446,208/318,629,122.80 - Step 6: Final answer
x = 477,943,684.20
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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.