Finding the Fourth Proportional to 136,733,318.64, 188,691,988.94 and 74,853,657.21
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Solution
The fourth proportional to 136,733,318.64, 188,691,988.94 and 74,853,657.21 is: 103,298,051.99
Step by Step Solution
- Step 1: Write the proportion equation
136,733,318.64 : 188,691,988.94 = 74,853,657.21 : x - Step 2: Convert to fraction form
136,733,318.64/188,691,988.94 = 74,853,657.21/x - Step 3: Cross multiply
136,733,318.64x = 188,691,988.94 × 74,853,657.21 - Step 4: Simplify right side
136,733,318.64x = 14,124,285,457,867,410 - Step 5: Solve for x
x = 14,124,285,457,867,410/136,733,318.64 - Step 6: Final answer
x = 103,298,051.99
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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.