Finding the Fourth Proportional to 213,077,205.30, 319,615,807.95 and 144,202,451.70
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Solution
The fourth proportional to 213,077,205.30, 319,615,807.95 and 144,202,451.70 is: 216,303,677.55
Step by Step Solution
- Step 1: Write the proportion equation
213,077,205.30 : 319,615,807.95 = 144,202,451.70 : x - Step 2: Convert to fraction form
213,077,205.30/319,615,807.95 = 144,202,451.70/x - Step 3: Cross multiply
213,077,205.30x = 319,615,807.95 × 144,202,451.70 - Step 4: Simplify right side
213,077,205.30x = 46,089,383,108,466,344 - Step 5: Solve for x
x = 46,089,383,108,466,344/213,077,205.30 - Step 6: Final answer
x = 216,303,677.55
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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.