Finding the Fourth Proportional to 81,873,245.80, 122,774,439.30 and 33,334,967.80
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Solution
The fourth proportional to 81,873,245.80, 122,774,439.30 and 33,334,967.80 is: 49,988,026.50
Step by Step Solution
- Step 1: Write the proportion equation
81,873,245.80 : 122,774,439.30 = 33,334,967.80 : x - Step 2: Convert to fraction form
81,873,245.80/122,774,439.30 = 33,334,967.80/x - Step 3: Cross multiply
81,873,245.80x = 122,774,439.30 × 33,334,967.80 - Step 4: Simplify right side
81,873,245.80x = 4,092,681,980,728,554.50 - Step 5: Solve for x
x = 4,092,681,980,728,554.50/81,873,245.80 - Step 6: Final answer
x = 49,988,026.50
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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.