Finding the Fourth Proportional to 1,472,477,464.80, 2,208,716,197.20 and 381,960,532.80
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Solution
The fourth proportional to 1,472,477,464.80, 2,208,716,197.20 and 381,960,532.80 is: 572,940,799.20
Step by Step Solution
- Step 1: Write the proportion equation
1,472,477,464.80 : 2,208,716,197.20 = 381,960,532.80 : x - Step 2: Convert to fraction form
1,472,477,464.80/2,208,716,197.20 = 381,960,532.80/x - Step 3: Cross multiply
1,472,477,464.80x = 2,208,716,197.20 × 381,960,532.80 - Step 4: Simplify right side
1,472,477,464.80x = 843,642,415,486,501,760 - Step 5: Solve for x
x = 843,642,415,486,501,760/1,472,477,464.80 - Step 6: Final answer
x = 572,940,799.20
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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.