Finding the Fourth Proportional to 68,469,787.36, 102,534,315.12 and 47,903,217.76
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Solution
The fourth proportional to 68,469,787.36, 102,534,315.12 and 47,903,217.76 is: 71,735,634.28
Step by Step Solution
- Step 1: Write the proportion equation
68,469,787.36 : 102,534,315.12 = 47,903,217.76 : x - Step 2: Convert to fraction form
68,469,787.36/102,534,315.12 = 47,903,217.76/x - Step 3: Cross multiply
68,469,787.36x = 102,534,315.12 × 47,903,217.76 - Step 4: Simplify right side
68,469,787.36x = 4,911,723,625,065,821 - Step 5: Solve for x
x = 4,911,723,625,065,821/68,469,787.36 - Step 6: Final answer
x = 71,735,634.28
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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.