Finding the Fourth Proportional to 129,344,569.80, 194,016,854.70 and 61,320,121.80
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Solution
The fourth proportional to 129,344,569.80, 194,016,854.70 and 61,320,121.80 is: 91,980,182.70
Step by Step Solution
- Step 1: Write the proportion equation
129,344,569.80 : 194,016,854.70 = 61,320,121.80 : x - Step 2: Convert to fraction form
129,344,569.80/194,016,854.70 = 61,320,121.80/x - Step 3: Cross multiply
129,344,569.80x = 194,016,854.70 × 61,320,121.80 - Step 4: Simplify right side
129,344,569.80x = 11,897,137,161,456,902 - Step 5: Solve for x
x = 11,897,137,161,456,902/129,344,569.80 - Step 6: Final answer
x = 91,980,182.70
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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.