Finding the Fourth Proportional to 502,977,147.62, 693,989,729.56 and 422,813,917.70
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Solution
The fourth proportional to 502,977,147.62, 693,989,729.56 and 422,813,917.70 is: 583,383,395.82
Step by Step Solution
- Step 1: Write the proportion equation
502,977,147.62 : 693,989,729.56 = 422,813,917.70 : x - Step 2: Convert to fraction form
502,977,147.62/693,989,729.56 = 422,813,917.70/x - Step 3: Cross multiply
502,977,147.62x = 693,989,729.56 × 422,813,917.70 - Step 4: Simplify right side
502,977,147.62x = 293,428,516,398,827,072 - Step 5: Solve for x
x = 293,428,516,398,827,072/502,977,147.62 - Step 6: Final answer
x = 583,383,395.82
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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.