Finding the Fourth Proportional to 129,658,012.29, 194,487,347.70 and 52,981,026.84
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Solution
The fourth proportional to 129,658,012.29, 194,487,347.70 and 52,981,026.84 is: 79,471,674.80
Step by Step Solution
- Step 1: Write the proportion equation
129,658,012.29 : 194,487,347.70 = 52,981,026.84 : x - Step 2: Convert to fraction form
129,658,012.29/194,487,347.70 = 52,981,026.84/x - Step 3: Cross multiply
129,658,012.29x = 194,487,347.70 × 52,981,026.84 - Step 4: Simplify right side
129,658,012.29x = 10,304,139,388,534,112 - Step 5: Solve for x
x = 10,304,139,388,534,112/129,658,012.29 - Step 6: Final answer
x = 79,471,674.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.