Finding the Fourth Proportional to 88,403,431.80, 132,605,147.70 and 66,880,071.30
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Solution
The fourth proportional to 88,403,431.80, 132,605,147.70 and 66,880,071.30 is: 100,320,106.95
Step by Step Solution
- Step 1: Write the proportion equation
88,403,431.80 : 132,605,147.70 = 66,880,071.30 : x - Step 2: Convert to fraction form
88,403,431.80/132,605,147.70 = 66,880,071.30/x - Step 3: Cross multiply
88,403,431.80x = 132,605,147.70 × 66,880,071.30 - Step 4: Simplify right side
88,403,431.80x = 8,868,641,732,923,031 - Step 5: Solve for x
x = 8,868,641,732,923,031/88,403,431.80 - Step 6: Final answer
x = 100,320,106.95
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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.