Finding the Fourth Proportional to 3,955,238,529.36, 5,458,235,149.50 and 2,146,751,047.20
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Solution
The fourth proportional to 3,955,238,529.36, 5,458,235,149.50 and 2,146,751,047.20 is: 2,962,519,690.30
Step by Step Solution
- Step 1: Write the proportion equation
3,955,238,529.36 : 5,458,235,149.50 = 2,146,751,047.20 : x - Step 2: Convert to fraction form
3,955,238,529.36/5,458,235,149.50 = 2,146,751,047.20/x - Step 3: Cross multiply
3,955,238,529.36x = 5,458,235,149.50 × 2,146,751,047.20 - Step 4: Simplify right side
3,955,238,529.36x = 11,717,472,023,052,974,080 - Step 5: Solve for x
x = 11,717,472,023,052,974,080/3,955,238,529.36 - Step 6: Final answer
x = 2,962,519,690.30
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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.