Finding the Fourth Proportional to 3,988,560,783.48, 5,504,897,368.08 and 2,318,778,475.92
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Solution
The fourth proportional to 3,988,560,783.48, 5,504,897,368.08 and 2,318,778,475.92 is: 3,200,311,646.78
Step by Step Solution
- Step 1: Write the proportion equation
3,988,560,783.48 : 5,504,897,368.08 = 2,318,778,475.92 : x - Step 2: Convert to fraction form
3,988,560,783.48/5,504,897,368.08 = 2,318,778,475.92/x - Step 3: Cross multiply
3,988,560,783.48x = 5,504,897,368.08 × 2,318,778,475.92 - Step 4: Simplify right side
3,988,560,783.48x = 12,764,637,529,252,560,896 - Step 5: Solve for x
x = 12,764,637,529,252,560,896/3,988,560,783.48 - Step 6: Final answer
x = 3,200,311,646.78
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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.