Finding the Fourth Proportional to 79,007,812.70, 110,686,520.50 and 79,007,812.70
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Solution
The fourth proportional to 79,007,812.70, 110,686,520.50 and 79,007,812.70 is: 110,686,520.50
Step by Step Solution
- Step 1: Write the proportion equation
79,007,812.70 : 110,686,520.50 = 79,007,812.70 : x - Step 2: Convert to fraction form
79,007,812.70/110,686,520.50 = 79,007,812.70/x - Step 3: Cross multiply
79,007,812.70x = 110,686,520.50 × 79,007,812.70 - Step 4: Simplify right side
79,007,812.70x = 8,745,099,880,078,711 - Step 5: Solve for x
x = 8,745,099,880,078,711/79,007,812.70 - Step 6: Final answer
x = 110,686,520.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.