Finding the Fourth Proportional to 399,028,246.97, 550,647,935.94 and 220,408,933.97
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Solution
The fourth proportional to 399,028,246.97, 550,647,935.94 and 220,408,933.97 is: 304,158,228.08
Step by Step Solution
- Step 1: Write the proportion equation
399,028,246.97 : 550,647,935.94 = 220,408,933.97 : x - Step 2: Convert to fraction form
399,028,246.97/550,647,935.94 = 220,408,933.97/x - Step 3: Cross multiply
399,028,246.97x = 550,647,935.94 × 220,408,933.97 - Step 4: Simplify right side
399,028,246.97x = 121,367,724,551,184,976 - Step 5: Solve for x
x = 121,367,724,551,184,976/399,028,246.97 - Step 6: Final answer
x = 304,158,228.08
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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.