Finding the Fourth Proportional to 199,616,000.40, 299,424,000.60 and 113,619,661.20
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Solution
The fourth proportional to 199,616,000.40, 299,424,000.60 and 113,619,661.20 is: 170,429,491.80
Step by Step Solution
- Step 1: Write the proportion equation
199,616,000.40 : 299,424,000.60 = 113,619,661.20 : x - Step 2: Convert to fraction form
199,616,000.40/299,424,000.60 = 113,619,661.20/x - Step 3: Cross multiply
199,616,000.40x = 299,424,000.60 × 113,619,661.20 - Step 4: Simplify right side
199,616,000.40x = 34,020,453,503,320,600 - Step 5: Solve for x
x = 34,020,453,503,320,600/199,616,000.40 - Step 6: Final answer
x = 170,429,491.80
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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.