Finding the Fourth Proportional to 2,365,657,477.20, 3,548,486,215.80 and 985,013,125.20
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Solution
The fourth proportional to 2,365,657,477.20, 3,548,486,215.80 and 985,013,125.20 is: 1,477,519,687.80
Step by Step Solution
- Step 1: Write the proportion equation
2,365,657,477.20 : 3,548,486,215.80 = 985,013,125.20 : x - Step 2: Convert to fraction form
2,365,657,477.20/3,548,486,215.80 = 985,013,125.20/x - Step 3: Cross multiply
2,365,657,477.20x = 3,548,486,215.80 × 985,013,125.20 - Step 4: Simplify right side
2,365,657,477.20x = 3,495,305,497,154,279,936 - Step 5: Solve for x
x = 3,495,305,497,154,279,936/2,365,657,477.20 - Step 6: Final answer
x = 1,477,519,687.80
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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.