Finding the Fourth Proportional to 73,412,206.60, 110,202,290.70 and 43,137,128.20
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Solution
The fourth proportional to 73,412,206.60, 110,202,290.70 and 43,137,128.20 is: 64,755,039.55
Step by Step Solution
- Step 1: Write the proportion equation
73,412,206.60 : 110,202,290.70 = 43,137,128.20 : x - Step 2: Convert to fraction form
73,412,206.60/110,202,290.70 = 43,137,128.20/x - Step 3: Cross multiply
73,412,206.60x = 110,202,290.70 × 43,137,128.20 - Step 4: Simplify right side
73,412,206.60x = 4,753,810,341,859,568 - Step 5: Solve for x
x = 4,753,810,341,859,568/73,412,206.60 - Step 6: Final answer
x = 64,755,039.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.