Finding the Fourth Proportional to 113,646,974.68, 156,875,474.58 and 74,491,274.80
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Solution
The fourth proportional to 113,646,974.68, 156,875,474.58 and 74,491,274.80 is: 102,825,914.37
Step by Step Solution
- Step 1: Write the proportion equation
113,646,974.68 : 156,875,474.58 = 74,491,274.80 : x - Step 2: Convert to fraction form
113,646,974.68/156,875,474.58 = 74,491,274.80/x - Step 3: Cross multiply
113,646,974.68x = 156,875,474.58 × 74,491,274.80 - Step 4: Simplify right side
113,646,974.68x = 11,685,854,086,319,196 - Step 5: Solve for x
x = 11,685,854,086,319,196/113,646,974.68 - Step 6: Final answer
x = 102,825,914.37
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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.