Finding the Fourth Proportional to 76,996,943.10, 115,495,414.65 and 48,331,496.70
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Solution
The fourth proportional to 76,996,943.10, 115,495,414.65 and 48,331,496.70 is: 72,497,245.05
Step by Step Solution
- Step 1: Write the proportion equation
76,996,943.10 : 115,495,414.65 = 48,331,496.70 : x - Step 2: Convert to fraction form
76,996,943.10/115,495,414.65 = 48,331,496.70/x - Step 3: Cross multiply
76,996,943.10x = 115,495,414.65 × 48,331,496.70 - Step 4: Simplify right side
76,996,943.10x = 5,582,066,252,021,607 - Step 5: Solve for x
x = 5,582,066,252,021,607/76,996,943.10 - Step 6: Final answer
x = 72,497,245.05
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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.