Finding the Fourth Proportional to 126,134,861.40, 189,202,292.10 and 39,899,701.80
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Solution
The fourth proportional to 126,134,861.40, 189,202,292.10 and 39,899,701.80 is: 59,849,552.70
Step by Step Solution
- Step 1: Write the proportion equation
126,134,861.40 : 189,202,292.10 = 39,899,701.80 : x - Step 2: Convert to fraction form
126,134,861.40/189,202,292.10 = 39,899,701.80/x - Step 3: Cross multiply
126,134,861.40x = 189,202,292.10 × 39,899,701.80 - Step 4: Simplify right side
126,134,861.40x = 7,549,115,034,666,495 - Step 5: Solve for x
x = 7,549,115,034,666,495/126,134,861.40 - Step 6: Final answer
x = 59,849,552.70
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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.