Finding the Fourth Proportional to 71,179,659.40, 106,769,489.10 and 48,336,881.80
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Solution
The fourth proportional to 71,179,659.40, 106,769,489.10 and 48,336,881.80 is: 72,505,322.70
Step by Step Solution
- Step 1: Write the proportion equation
71,179,659.40 : 106,769,489.10 = 48,336,881.80 : x - Step 2: Convert to fraction form
71,179,659.40/106,769,489.10 = 48,336,881.80/x - Step 3: Cross multiply
71,179,659.40x = 106,769,489.10 × 48,336,881.80 - Step 4: Simplify right side
71,179,659.40x = 5,160,904,174,473,088 - Step 5: Solve for x
x = 5,160,904,174,473,088/71,179,659.40 - Step 6: Final answer
x = 72,505,322.70
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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.