Finding the Fourth Proportional to 85,545,138.57, 128,266,463.68 and 27,227,626.26
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Solution
The fourth proportional to 85,545,138.57, 128,266,463.68 and 27,227,626.26 is: 40,825,129.20
Step by Step Solution
- Step 1: Write the proportion equation
85,545,138.57 : 128,266,463.68 = 27,227,626.26 : x - Step 2: Convert to fraction form
85,545,138.57/128,266,463.68 = 27,227,626.26/x - Step 3: Cross multiply
85,545,138.57x = 128,266,463.68 × 27,227,626.26 - Step 4: Simplify right side
85,545,138.57x = 3,492,391,334,702,835 - Step 5: Solve for x
x = 3,492,391,334,702,835/85,545,138.57 - Step 6: Final answer
x = 40,825,129.20
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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.