Finding the Fourth Proportional to 756,975,919.55, 1,135,463,879.33 and 739,969,807.55
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Solution
The fourth proportional to 756,975,919.55, 1,135,463,879.33 and 739,969,807.55 is: 1,109,954,711.33
Step by Step Solution
- Step 1: Write the proportion equation
756,975,919.55 : 1,135,463,879.33 = 739,969,807.55 : x - Step 2: Convert to fraction form
756,975,919.55/1,135,463,879.33 = 739,969,807.55/x - Step 3: Cross multiply
756,975,919.55x = 1,135,463,879.33 × 739,969,807.55 - Step 4: Simplify right side
756,975,919.55x = 840,208,988,267,796,352 - Step 5: Solve for x
x = 840,208,988,267,796,352/756,975,919.55 - Step 6: Final answer
x = 1,109,954,711.33
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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.