Finding the Fourth Proportional to 2,586,548,398.56, 3,569,438,221.92 and 1,397,117,361.12
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Solution
The fourth proportional to 2,586,548,398.56, 3,569,438,221.92 and 1,397,117,361.12 is: 1,928,022,731.79
Step by Step Solution
- Step 1: Write the proportion equation
2,586,548,398.56 : 3,569,438,221.92 = 1,397,117,361.12 : x - Step 2: Convert to fraction form
2,586,548,398.56/3,569,438,221.92 = 1,397,117,361.12/x - Step 3: Cross multiply
2,586,548,398.56x = 3,569,438,221.92 × 1,397,117,361.12 - Step 4: Simplify right side
2,586,548,398.56x = 4,986,924,109,289,735,168 - Step 5: Solve for x
x = 4,986,924,109,289,735,168/2,586,548,398.56 - Step 6: Final answer
x = 1,928,022,731.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.