Finding the Fourth Proportional to 38,417,549.40, 57,629,356.74 and 12,858,653.88
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Solution
The fourth proportional to 38,417,549.40, 57,629,356.74 and 12,858,653.88 is: 19,288,995.87
Step by Step Solution
- Step 1: Write the proportion equation
38,417,549.40 : 57,629,356.74 = 12,858,653.88 : x - Step 2: Convert to fraction form
38,417,549.40/57,629,356.74 = 12,858,653.88/x - Step 3: Cross multiply
38,417,549.40x = 57,629,356.74 × 12,858,653.88 - Step 4: Simplify right side
38,417,549.40x = 741,035,951,646,705.25 - Step 5: Solve for x
x = 741,035,951,646,705.25/38,417,549.40 - Step 6: Final answer
x = 19,288,995.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.