Finding the Fourth Proportional to 212,306,756.38, 318,345,972.57 and 124,898,489.98
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Solution
The fourth proportional to 212,306,756.38, 318,345,972.57 and 124,898,489.98 is: 187,280,574.31
Step by Step Solution
- Step 1: Write the proportion equation
212,306,756.38 : 318,345,972.57 = 124,898,489.98 : x - Step 2: Convert to fraction form
212,306,756.38/318,345,972.57 = 124,898,489.98/x - Step 3: Cross multiply
212,306,756.38x = 318,345,972.57 × 124,898,489.98 - Step 4: Simplify right side
212,306,756.38x = 39,760,931,265,207,504 - Step 5: Solve for x
x = 39,760,931,265,207,504/212,306,756.38 - Step 6: Final answer
x = 187,280,574.31
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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.