Finding the Fourth Proportional to 129,149,354,015.20, 193,724,031,022.80 and 129,149,354,015.20
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Solution
The fourth proportional to 129,149,354,015.20, 193,724,031,022.80 and 129,149,354,015.20 is: 193,724,031,022.80
Step by Step Solution
- Step 1: Write the proportion equation
129,149,354,015.20 : 193,724,031,022.80 = 129,149,354,015.20 : x - Step 2: Convert to fraction form
129,149,354,015.20/193,724,031,022.80 = 129,149,354,015.20/x - Step 3: Cross multiply
129,149,354,015.20x = 193,724,031,022.80 × 129,149,354,015.20 - Step 4: Simplify right side
129,149,354,015.20x = 25,019,333,463,815,183,400,960 - Step 5: Solve for x
x = 25,019,333,463,815,183,400,960/129,149,354,015.20 - Step 6: Final answer
x = 193,724,031,022.80
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1.5x scale
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.