Finding the Fourth Proportional to 638,595,627.20, 957,893,440.80 and 275,798,571.20
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Solution
The fourth proportional to 638,595,627.20, 957,893,440.80 and 275,798,571.20 is: 413,697,856.80
Step by Step Solution
- Step 1: Write the proportion equation
638,595,627.20 : 957,893,440.80 = 275,798,571.20 : x - Step 2: Convert to fraction form
638,595,627.20/957,893,440.80 = 275,798,571.20/x - Step 3: Cross multiply
638,595,627.20x = 957,893,440.80 × 275,798,571.20 - Step 4: Simplify right side
638,595,627.20x = 264,185,642,334,491,776 - Step 5: Solve for x
x = 264,185,642,334,491,776/638,595,627.20 - Step 6: Final answer
x = 413,697,856.80
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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.