Finding the Fourth Proportional to 87,745,720.73, 121,087,611.54 and 48,586,656.74
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Solution
The fourth proportional to 87,745,720.73, 121,087,611.54 and 48,586,656.74 is: 67,048,765.09
Step by Step Solution
- Step 1: Write the proportion equation
87,745,720.73 : 121,087,611.54 = 48,586,656.74 : x - Step 2: Convert to fraction form
87,745,720.73/121,087,611.54 = 48,586,656.74/x - Step 3: Cross multiply
87,745,720.73x = 121,087,611.54 × 48,586,656.74 - Step 4: Simplify right side
87,745,720.73x = 5,883,242,216,755,005 - Step 5: Solve for x
x = 5,883,242,216,755,005/87,745,720.73 - Step 6: Final answer
x = 67,048,765.09
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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.