Finding the Fourth Proportional to 199,632,452.80, 299,448,679.20 and 97,343,838.40
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Solution
The fourth proportional to 199,632,452.80, 299,448,679.20 and 97,343,838.40 is: 146,015,757.60
Step by Step Solution
- Step 1: Write the proportion equation
199,632,452.80 : 299,448,679.20 = 97,343,838.40 : x - Step 2: Convert to fraction form
199,632,452.80/299,448,679.20 = 97,343,838.40/x - Step 3: Cross multiply
199,632,452.80x = 299,448,679.20 × 97,343,838.40 - Step 4: Simplify right side
199,632,452.80x = 29,149,483,837,138,240 - Step 5: Solve for x
x = 29,149,483,837,138,240/199,632,452.80 - Step 6: Final answer
x = 146,015,757.60
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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.