Finding the Fourth Proportional to 1,141,378,737.76, 1,709,161,694.64 and 752,021,145.12
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Solution
The fourth proportional to 1,141,378,737.76, 1,709,161,694.64 and 752,021,145.12 is: 1,126,116,767.62
Step by Step Solution
- Step 1: Write the proportion equation
1,141,378,737.76 : 1,709,161,694.64 = 752,021,145.12 : x - Step 2: Convert to fraction form
1,141,378,737.76/1,709,161,694.64 = 752,021,145.12/x - Step 3: Cross multiply
1,141,378,737.76x = 1,709,161,694.64 × 752,021,145.12 - Step 4: Simplify right side
1,141,378,737.76x = 1,285,325,734,798,412,544 - Step 5: Solve for x
x = 1,285,325,734,798,412,544/1,141,378,737.76 - Step 6: Final answer
x = 1,126,116,767.62
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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.