Finding the Fourth Proportional to 2,151,431,816.36, 2,968,897,522.80 and 1,198,763,331.44
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Solution
The fourth proportional to 2,151,431,816.36, 2,968,897,522.80 and 1,198,763,331.44 is: 1,654,249,722.47
Step by Step Solution
- Step 1: Write the proportion equation
2,151,431,816.36 : 2,968,897,522.80 = 1,198,763,331.44 : x - Step 2: Convert to fraction form
2,151,431,816.36/2,968,897,522.80 = 1,198,763,331.44/x - Step 3: Cross multiply
2,151,431,816.36x = 2,968,897,522.80 × 1,198,763,331.44 - Step 4: Simplify right side
2,151,431,816.36x = 3,559,005,485,135,691,776 - Step 5: Solve for x
x = 3,559,005,485,135,691,776/2,151,431,816.36 - Step 6: Final answer
x = 1,654,249,722.47
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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.