Finding the Fourth Proportional to 8,586,935.70, 12,880,403.55 and 5,227,703.70
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Solution
The fourth proportional to 8,586,935.70, 12,880,403.55 and 5,227,703.70 is: 7,841,555.55
Step by Step Solution
- Step 1: Write the proportion equation
8,586,935.70 : 12,880,403.55 = 5,227,703.70 : x - Step 2: Convert to fraction form
8,586,935.70/12,880,403.55 = 5,227,703.70/x - Step 3: Cross multiply
8,586,935.70x = 12,880,403.55 × 5,227,703.70 - Step 4: Simplify right side
8,586,935.70x = 67,334,933,295,828.14 - Step 5: Solve for x
x = 67,334,933,295,828.14/8,586,935.70 - Step 6: Final answer
x = 7,841,555.55
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1.5x scale
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.