Finding the Fourth Proportional to 129,540,687.12, 194,282,368.20 and 37,404,425.70
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Solution
The fourth proportional to 129,540,687.12, 194,282,368.20 and 37,404,425.70 is: 56,098,362.36
Step by Step Solution
- Step 1: Write the proportion equation
129,540,687.12 : 194,282,368.20 = 37,404,425.70 : x - Step 2: Convert to fraction form
129,540,687.12/194,282,368.20 = 37,404,425.70/x - Step 3: Cross multiply
129,540,687.12x = 194,282,368.20 × 37,404,425.70 - Step 4: Simplify right side
129,540,687.12x = 7,267,020,406,156,943 - Step 5: Solve for x
x = 7,267,020,406,156,943/129,540,687.12 - Step 6: Final answer
x = 56,098,362.36
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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.