Finding the Fourth Proportional to 8,231,605,137.21, 11,359,718,402.88 and 4,472,478,481.35
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Solution
The fourth proportional to 8,231,605,137.21, 11,359,718,402.88 and 4,472,478,481.35 is: 6,172,076,437.61
Step by Step Solution
- Step 1: Write the proportion equation
8,231,605,137.21 : 11,359,718,402.88 = 4,472,478,481.35 : x - Step 2: Convert to fraction form
8,231,605,137.21/11,359,718,402.88 = 4,472,478,481.35/x - Step 3: Cross multiply
8,231,605,137.21x = 11,359,718,402.88 × 4,472,478,481.35 - Step 4: Simplify right side
8,231,605,137.21x = 50,806,096,111,076,392,960 - Step 5: Solve for x
x = 50,806,096,111,076,392,960/8,231,605,137.21 - Step 6: Final answer
x = 6,172,076,437.61
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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.