Finding the Fourth Proportional to 145,156,787.10, 217,730,515.05 and 48,116,972.70
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Solution
The fourth proportional to 145,156,787.10, 217,730,515.05 and 48,116,972.70 is: 72,173,912.48
Step by Step Solution
- Step 1: Write the proportion equation
145,156,787.10 : 217,730,515.05 = 48,116,972.70 : x - Step 2: Convert to fraction form
145,156,787.10/217,730,515.05 = 48,116,972.70/x - Step 3: Cross multiply
145,156,787.10x = 217,730,515.05 × 48,116,972.70 - Step 4: Simplify right side
145,156,787.10x = 10,476,533,248,617,790 - Step 5: Solve for x
x = 10,476,533,248,617,790/145,156,787.10 - Step 6: Final answer
x = 72,173,912.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.