Finding the Fourth Proportional to 136,436,732.79, 188,301,893.99 and 86,861,270.04
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Solution
The fourth proportional to 136,436,732.79, 188,301,893.99 and 86,861,270.04 is: 119,880,777.91
Step by Step Solution
- Step 1: Write the proportion equation
136,436,732.79 : 188,301,893.99 = 86,861,270.04 : x - Step 2: Convert to fraction form
136,436,732.79/188,301,893.99 = 86,861,270.04/x - Step 3: Cross multiply
136,436,732.79x = 188,301,893.99 × 86,861,270.04 - Step 4: Simplify right side
136,436,732.79x = 16,356,141,662,474,540 - Step 5: Solve for x
x = 16,356,141,662,474,540/136,436,732.79 - Step 6: Final answer
x = 119,880,777.91
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.