Finding the Fourth Proportional to 85,678,074.99, 128,535,549.46 and 26,589,288.42
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Solution
The fourth proportional to 85,678,074.99, 128,535,549.46 and 26,589,288.42 is: 39,889,654.35
Step by Step Solution
- Step 1: Write the proportion equation
85,678,074.99 : 128,535,549.46 = 26,589,288.42 : x - Step 2: Convert to fraction form
85,678,074.99/128,535,549.46 = 26,589,288.42/x - Step 3: Cross multiply
85,678,074.99x = 128,535,549.46 × 26,589,288.42 - Step 4: Simplify right side
85,678,074.99x = 3,417,668,796,748,642 - Step 5: Solve for x
x = 3,417,668,796,748,642/85,678,074.99 - Step 6: Final answer
x = 39,889,654.35
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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.