Finding the Fourth Proportional to 91,207,881.65, 136,812,708.21 and 72,966,761.03
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Solution
The fourth proportional to 91,207,881.65, 136,812,708.21 and 72,966,761.03 is: 109,450,850.14
Step by Step Solution
- Step 1: Write the proportion equation
91,207,881.65 : 136,812,708.21 = 72,966,761.03 : x - Step 2: Convert to fraction form
91,207,881.65/136,812,708.21 = 72,966,761.03/x - Step 3: Cross multiply
91,207,881.65x = 136,812,708.21 × 72,966,761.03 - Step 4: Simplify right side
91,207,881.65x = 9,982,780,185,826,190 - Step 5: Solve for x
x = 9,982,780,185,826,190/91,207,881.65 - Step 6: Final answer
x = 109,450,850.14
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.