Finding the Fourth Proportional to 406,846,091.68, 561,440,992.08 and 221,211,782.08
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Solution
The fourth proportional to 406,846,091.68, 561,440,992.08 and 221,211,782.08 is: 305,268,662.84
Step by Step Solution
- Step 1: Write the proportion equation
406,846,091.68 : 561,440,992.08 = 221,211,782.08 : x - Step 2: Convert to fraction form
406,846,091.68/561,440,992.08 = 221,211,782.08/x - Step 3: Cross multiply
406,846,091.68x = 561,440,992.08 × 221,211,782.08 - Step 4: Simplify right side
406,846,091.68x = 124,197,362,390,779,984 - Step 5: Solve for x
x = 124,197,362,390,779,984/406,846,091.68 - Step 6: Final answer
x = 305,268,662.84
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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.