Finding the Fourth Proportional to 19,414,851.20, 29,122,276.80 and 19,036,937.60
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Solution
The fourth proportional to 19,414,851.20, 29,122,276.80 and 19,036,937.60 is: 28,555,406.40
Step by Step Solution
- Step 1: Write the proportion equation
19,414,851.20 : 29,122,276.80 = 19,036,937.60 : x - Step 2: Convert to fraction form
19,414,851.20/29,122,276.80 = 19,036,937.60/x - Step 3: Cross multiply
19,414,851.20x = 29,122,276.80 × 19,036,937.60 - Step 4: Simplify right side
19,414,851.20x = 554,398,966,211,527.75 - Step 5: Solve for x
x = 554,398,966,211,527.75/19,414,851.20 - Step 6: Final answer
x = 28,555,406.40
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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.