Finding the Fourth Proportional to 88,575,728.80, 132,438,440.40 and 65,617,477.60
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Solution
The fourth proportional to 88,575,728.80, 132,438,440.40 and 65,617,477.60 is: 98,111,260.43
Step by Step Solution
- Step 1: Write the proportion equation
88,575,728.80 : 132,438,440.40 = 65,617,477.60 : x - Step 2: Convert to fraction form
88,575,728.80/132,438,440.40 = 65,617,477.60/x - Step 3: Cross multiply
88,575,728.80x = 132,438,440.40 × 65,617,477.60 - Step 4: Simplify right side
88,575,728.80x = 8,690,276,396,325,936 - Step 5: Solve for x
x = 8,690,276,396,325,936/88,575,728.80 - Step 6: Final answer
x = 98,111,260.43
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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.