Finding the Fourth Proportional to 834,082,877.70, 1,251,124,316.55 and 640,969,028.10
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Solution
The fourth proportional to 834,082,877.70, 1,251,124,316.55 and 640,969,028.10 is: 961,453,542.15
Step by Step Solution
- Step 1: Write the proportion equation
834,082,877.70 : 1,251,124,316.55 = 640,969,028.10 : x - Step 2: Convert to fraction form
834,082,877.70/1,251,124,316.55 = 640,969,028.10/x - Step 3: Cross multiply
834,082,877.70x = 1,251,124,316.55 × 640,969,028.10 - Step 4: Simplify right side
834,082,877.70x = 801,931,937,211,330,304 - Step 5: Solve for x
x = 801,931,937,211,330,304/834,082,877.70 - Step 6: Final answer
x = 961,453,542.15
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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.