Finding the Fourth Proportional to 88,578,756.70, 132,868,135.05 and 85,177,534.30
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Solution
The fourth proportional to 88,578,756.70, 132,868,135.05 and 85,177,534.30 is: 127,766,301.45
Step by Step Solution
- Step 1: Write the proportion equation
88,578,756.70 : 132,868,135.05 = 85,177,534.30 : x - Step 2: Convert to fraction form
88,578,756.70/132,868,135.05 = 85,177,534.30/x - Step 3: Cross multiply
88,578,756.70x = 132,868,135.05 × 85,177,534.30 - Step 4: Simplify right side
88,578,756.70x = 11,317,380,130,598,406 - Step 5: Solve for x
x = 11,317,380,130,598,406/88,578,756.70 - Step 6: Final answer
x = 127,766,301.45
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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.