Finding the Fourth Proportional to 38,765,101.64, 53,496,198.99 and 21,362,069.63
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Solution
The fourth proportional to 38,765,101.64, 53,496,198.99 and 21,362,069.63 is: 29,479,853.77
Step by Step Solution
- Step 1: Write the proportion equation
38,765,101.64 : 53,496,198.99 = 21,362,069.63 : x - Step 2: Convert to fraction form
38,765,101.64/53,496,198.99 = 21,362,069.63/x - Step 3: Cross multiply
38,765,101.64x = 53,496,198.99 × 21,362,069.63 - Step 4: Simplify right side
38,765,101.64x = 1,142,789,527,764,715.75 - Step 5: Solve for x
x = 1,142,789,527,764,715.75/38,765,101.64 - Step 6: Final answer
x = 29,479,853.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.