Finding the Fourth Proportional to 212,787,640.10, 318,933,454.35 and 97,783,807.70
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Solution
The fourth proportional to 212,787,640.10, 318,933,454.35 and 97,783,807.70 is: 146,561,743.69
Step by Step Solution
- Step 1: Write the proportion equation
212,787,640.10 : 318,933,454.35 = 97,783,807.70 : x - Step 2: Convert to fraction form
212,787,640.10/318,933,454.35 = 97,783,807.70/x - Step 3: Cross multiply
212,787,640.10x = 318,933,454.35 × 97,783,807.70 - Step 4: Simplify right side
212,787,640.10x = 31,186,527,569,257,132 - Step 5: Solve for x
x = 31,186,527,569,257,132/212,787,640.10 - Step 6: Final answer
x = 146,561,743.69
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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.