Finding the Fourth Proportional to 168,291,299.60, 252,362,299.80 and 77,368,086.80
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Solution
The fourth proportional to 168,291,299.60, 252,362,299.80 and 77,368,086.80 is: 116,017,811.75
Step by Step Solution
- Step 1: Write the proportion equation
168,291,299.60 : 252,362,299.80 = 77,368,086.80 : x - Step 2: Convert to fraction form
168,291,299.60/252,362,299.80 = 77,368,086.80/x - Step 3: Cross multiply
168,291,299.60x = 252,362,299.80 × 77,368,086.80 - Step 4: Simplify right side
168,291,299.60x = 19,524,788,315,974,024 - Step 5: Solve for x
x = 19,524,788,315,974,024/168,291,299.60 - Step 6: Final answer
x = 116,017,811.75
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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.