Finding the Fourth Proportional to 91,207,892.84, 136,812,724.99 and 72,966,772.22
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Solution
The fourth proportional to 91,207,892.84, 136,812,724.99 and 72,966,772.22 is: 109,450,866.92
Step by Step Solution
- Step 1: Write the proportion equation
91,207,892.84 : 136,812,724.99 = 72,966,772.22 : x - Step 2: Convert to fraction form
91,207,892.84/136,812,724.99 = 72,966,772.22/x - Step 3: Cross multiply
91,207,892.84x = 136,812,724.99 × 72,966,772.22 - Step 4: Simplify right side
91,207,892.84x = 9,982,782,941,142,832 - Step 5: Solve for x
x = 9,982,782,941,142,832/91,207,892.84 - Step 6: Final answer
x = 109,450,866.92
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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.