Finding the Fourth Proportional to 83,829,527.97, 115,664,959.57 and 70,468,989.65
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Solution
The fourth proportional to 83,829,527.97, 115,664,959.57 and 70,468,989.65 is: 97,230,570.62
Step by Step Solution
- Step 1: Write the proportion equation
83,829,527.97 : 115,664,959.57 = 70,468,989.65 : x - Step 2: Convert to fraction form
83,829,527.97/115,664,959.57 = 70,468,989.65/x - Step 3: Cross multiply
83,829,527.97x = 115,664,959.57 × 70,468,989.65 - Step 4: Simplify right side
83,829,527.97x = 8,150,792,839,267,638 - Step 5: Solve for x
x = 8,150,792,839,267,638/83,829,527.97 - Step 6: Final answer
x = 97,230,570.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.