Finding the Fourth Proportional to 73,758,540.80, 110,637,811.20 and 31,202,739.20
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Solution
The fourth proportional to 73,758,540.80, 110,637,811.20 and 31,202,739.20 is: 46,804,108.80
Step by Step Solution
- Step 1: Write the proportion equation
73,758,540.80 : 110,637,811.20 = 31,202,739.20 : x - Step 2: Convert to fraction form
73,758,540.80/110,637,811.20 = 31,202,739.20/x - Step 3: Cross multiply
73,758,540.80x = 110,637,811.20 × 31,202,739.20 - Step 4: Simplify right side
73,758,540.80x = 3,452,202,768,532,439 - Step 5: Solve for x
x = 3,452,202,768,532,439/73,758,540.80 - Step 6: Final answer
x = 46,804,108.80
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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.