Finding the Fourth Proportional to 7,466,372.20, 11,187,116.70 and 7,018,474.60
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Solution
The fourth proportional to 7,466,372.20, 11,187,116.70 and 7,018,474.60 is: 10,516,016.65
Step by Step Solution
- Step 1: Write the proportion equation
7,466,372.20 : 11,187,116.70 = 7,018,474.60 : x - Step 2: Convert to fraction form
7,466,372.20/11,187,116.70 = 7,018,474.60/x - Step 3: Cross multiply
7,466,372.20x = 11,187,116.70 × 7,018,474.60 - Step 4: Simplify right side
7,466,372.20x = 78,516,494,406,185.81 - Step 5: Solve for x
x = 78,516,494,406,185.81/7,466,372.20 - Step 6: Final answer
x = 10,516,016.65
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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.