Finding the Fourth Proportional to 1,770,190,437.20, 2,655,285,655.80 and 748,851,198.80
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Solution
The fourth proportional to 1,770,190,437.20, 2,655,285,655.80 and 748,851,198.80 is: 1,123,276,798.20
Step by Step Solution
- Step 1: Write the proportion equation
1,770,190,437.20 : 2,655,285,655.80 = 748,851,198.80 : x - Step 2: Convert to fraction form
1,770,190,437.20/2,655,285,655.80 = 748,851,198.80/x - Step 3: Cross multiply
1,770,190,437.20x = 2,655,285,655.80 × 748,851,198.80 - Step 4: Simplify right side
1,770,190,437.20x = 1,988,413,846,502,274,304 - Step 5: Solve for x
x = 1,988,413,846,502,274,304/1,770,190,437.20 - Step 6: Final answer
x = 1,123,276,798.20
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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.