Finding the Fourth Proportional to 1,154,339,091.99, 1,592,945,270.10 and 625,691,727.81
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Solution
The fourth proportional to 1,154,339,091.99, 1,592,945,270.10 and 625,691,727.81 is: 863,431,452.05
Step by Step Solution
- Step 1: Write the proportion equation
1,154,339,091.99 : 1,592,945,270.10 = 625,691,727.81 : x - Step 2: Convert to fraction form
1,154,339,091.99/1,592,945,270.10 = 625,691,727.81/x - Step 3: Cross multiply
1,154,339,091.99x = 1,592,945,270.10 × 625,691,727.81 - Step 4: Simplify right side
1,154,339,091.99x = 996,692,678,355,635,968 - Step 5: Solve for x
x = 996,692,678,355,635,968/1,154,339,091.99 - Step 6: Final answer
x = 863,431,452.05
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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.