Finding the Fourth Proportional to 129,378,602.79, 193,954,530.11 and 48,656,257.83
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Solution
The fourth proportional to 129,378,602.79, 193,954,530.11 and 48,656,257.83 is: 72,941,749.41
Step by Step Solution
- Step 1: Write the proportion equation
129,378,602.79 : 193,954,530.11 = 48,656,257.83 : x - Step 2: Convert to fraction form
129,378,602.79/193,954,530.11 = 48,656,257.83/x - Step 3: Cross multiply
129,378,602.79x = 193,954,530.11 × 48,656,257.83 - Step 4: Simplify right side
129,378,602.79x = 9,437,101,624,085,376 - Step 5: Solve for x
x = 9,437,101,624,085,376/129,378,602.79 - Step 6: Final answer
x = 72,941,749.41
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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.