Finding the Fourth Proportional to 221,228,439.40, 331,842,659.10 and 67,874,249.80
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Solution
The fourth proportional to 221,228,439.40, 331,842,659.10 and 67,874,249.80 is: 101,811,374.70
Step by Step Solution
- Step 1: Write the proportion equation
221,228,439.40 : 331,842,659.10 = 67,874,249.80 : x - Step 2: Convert to fraction form
221,228,439.40/331,842,659.10 = 67,874,249.80/x - Step 3: Cross multiply
221,228,439.40x = 331,842,659.10 × 67,874,249.80 - Step 4: Simplify right side
221,228,439.40x = 22,523,571,538,049,644 - Step 5: Solve for x
x = 22,523,571,538,049,644/221,228,439.40 - Step 6: Final answer
x = 101,811,374.70
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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.