Finding the Fourth Proportional to 129,492,043.30, 194,238,064.95 and 128,736,216.10
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Solution
The fourth proportional to 129,492,043.30, 194,238,064.95 and 128,736,216.10 is: 193,104,324.15
Step by Step Solution
- Step 1: Write the proportion equation
129,492,043.30 : 194,238,064.95 = 128,736,216.10 : x - Step 2: Convert to fraction form
129,492,043.30/194,238,064.95 = 128,736,216.10/x - Step 3: Cross multiply
129,492,043.30x = 194,238,064.95 × 128,736,216.10 - Step 4: Simplify right side
129,492,043.30x = 25,005,473,504,249,032 - Step 5: Solve for x
x = 25,005,473,504,249,032/129,492,043.30 - Step 6: Final answer
x = 193,104,324.15
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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.