Finding the Fourth Proportional to 89,830,152.80, 134,493,286.80 and 87,310,728.80
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Solution
The fourth proportional to 89,830,152.80, 134,493,286.80 and 87,310,728.80 is: 130,721,216.91
Step by Step Solution
- Step 1: Write the proportion equation
89,830,152.80 : 134,493,286.80 = 87,310,728.80 : x - Step 2: Convert to fraction form
89,830,152.80/134,493,286.80 = 87,310,728.80/x - Step 3: Cross multiply
89,830,152.80x = 134,493,286.80 × 87,310,728.80 - Step 4: Simplify right side
89,830,152.80x = 11,742,706,889,215,420 - Step 5: Solve for x
x = 11,742,706,889,215,420/89,830,152.80 - Step 6: Final answer
x = 130,721,216.91
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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.