Finding the Fourth Proportional to 693,767,037.62, 957,310,250.49 and 396,428,553.62
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Solution
The fourth proportional to 693,767,037.62, 957,310,250.49 and 396,428,553.62 is: 547,020,970.14
Step by Step Solution
- Step 1: Write the proportion equation
693,767,037.62 : 957,310,250.49 = 396,428,553.62 : x - Step 2: Convert to fraction form
693,767,037.62/957,310,250.49 = 396,428,553.62/x - Step 3: Cross multiply
693,767,037.62x = 957,310,250.49 × 396,428,553.62 - Step 4: Simplify right side
693,767,037.62x = 379,505,117,967,350,592 - Step 5: Solve for x
x = 379,505,117,967,350,592/693,767,037.62 - Step 6: Final answer
x = 547,020,970.14
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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.