Finding the Fourth Proportional to 126,029,564.40, 189,044,346.60 and 39,776,690.10
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Solution
The fourth proportional to 126,029,564.40, 189,044,346.60 and 39,776,690.10 is: 59,665,035.15
Step by Step Solution
- Step 1: Write the proportion equation
126,029,564.40 : 189,044,346.60 = 39,776,690.10 : x - Step 2: Convert to fraction form
126,029,564.40/189,044,346.60 = 39,776,690.10/x - Step 3: Cross multiply
126,029,564.40x = 189,044,346.60 × 39,776,690.10 - Step 4: Simplify right side
126,029,564.40x = 7,519,558,389,865,189 - Step 5: Solve for x
x = 7,519,558,389,865,189/126,029,564.40 - Step 6: Final answer
x = 59,665,035.15
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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.