Finding the Fourth Proportional to 73,995,902.80, 110,993,854.20 and 31,440,101.20
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Solution
The fourth proportional to 73,995,902.80, 110,993,854.20 and 31,440,101.20 is: 47,160,151.80
Step by Step Solution
- Step 1: Write the proportion equation
73,995,902.80 : 110,993,854.20 = 31,440,101.20 : x - Step 2: Convert to fraction form
73,995,902.80/110,993,854.20 = 31,440,101.20/x - Step 3: Cross multiply
73,995,902.80x = 110,993,854.20 × 31,440,101.20 - Step 4: Simplify right side
73,995,902.80x = 3,489,658,008,626,045 - Step 5: Solve for x
x = 3,489,658,008,626,045/73,995,902.80 - Step 6: Final answer
x = 47,160,151.80
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1.5x scale
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.