Finding the Fourth Proportional to 99,736,811.70, 149,605,217.55 and 61,473,059.70
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Solution
The fourth proportional to 99,736,811.70, 149,605,217.55 and 61,473,059.70 is: 92,209,589.55
Step by Step Solution
- Step 1: Write the proportion equation
99,736,811.70 : 149,605,217.55 = 61,473,059.70 : x - Step 2: Convert to fraction form
99,736,811.70/149,605,217.55 = 61,473,059.70/x - Step 3: Cross multiply
99,736,811.70x = 149,605,217.55 × 61,473,059.70 - Step 4: Simplify right side
99,736,811.70x = 9,196,690,469,882,638 - Step 5: Solve for x
x = 9,196,690,469,882,638/99,736,811.70 - Step 6: Final answer
x = 92,209,589.55
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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.