Finding the Fourth Proportional to 71,082,068.74, 106,623,103.11 and 66,299,099.74
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Solution
The fourth proportional to 71,082,068.74, 106,623,103.11 and 66,299,099.74 is: 99,448,649.61
Step by Step Solution
- Step 1: Write the proportion equation
71,082,068.74 : 106,623,103.11 = 66,299,099.74 : x - Step 2: Convert to fraction form
71,082,068.74/106,623,103.11 = 66,299,099.74/x - Step 3: Cross multiply
71,082,068.74x = 106,623,103.11 × 66,299,099.74 - Step 4: Simplify right side
71,082,068.74x = 7,069,015,747,163,015 - Step 5: Solve for x
x = 7,069,015,747,163,015/71,082,068.74 - Step 6: Final answer
x = 99,448,649.61
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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.