Finding the Fourth Proportional to 828,823,578.04, 1,143,780,192.48 and 457,548,660.28
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Solution
The fourth proportional to 828,823,578.04, 1,143,780,192.48 and 457,548,660.28 is: 631,419,168.80
Step by Step Solution
- Step 1: Write the proportion equation
828,823,578.04 : 1,143,780,192.48 = 457,548,660.28 : x - Step 2: Convert to fraction form
828,823,578.04/1,143,780,192.48 = 457,548,660.28/x - Step 3: Cross multiply
828,823,578.04x = 1,143,780,192.48 × 457,548,660.28 - Step 4: Simplify right side
828,823,578.04x = 523,335,094,724,024,512 - Step 5: Solve for x
x = 523,335,094,724,024,512/828,823,578.04 - Step 6: Final answer
x = 631,419,168.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.