Finding the Fourth Proportional to 638,595,629.70, 957,893,444.55 and 275,798,573.70
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Solution
The fourth proportional to 638,595,629.70, 957,893,444.55 and 275,798,573.70 is: 413,697,860.55
Step by Step Solution
- Step 1: Write the proportion equation
638,595,629.70 : 957,893,444.55 = 275,798,573.70 : x - Step 2: Convert to fraction form
638,595,629.70/957,893,444.55 = 275,798,573.70/x - Step 3: Cross multiply
638,595,629.70x = 957,893,444.55 × 275,798,573.70 - Step 4: Simplify right side
638,595,629.70x = 264,185,645,763,470,016 - Step 5: Solve for x
x = 264,185,645,763,470,016/638,595,629.70 - Step 6: Final answer
x = 413,697,860.55
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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.