Finding the Fourth Proportional to 87,552,128.80, 131,328,193.20 and 86,357,735.20
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Solution
The fourth proportional to 87,552,128.80, 131,328,193.20 and 86,357,735.20 is: 129,536,602.80
Step by Step Solution
- Step 1: Write the proportion equation
87,552,128.80 : 131,328,193.20 = 86,357,735.20 : x - Step 2: Convert to fraction form
87,552,128.80/131,328,193.20 = 86,357,735.20/x - Step 3: Cross multiply
87,552,128.80x = 131,328,193.20 × 86,357,735.20 - Step 4: Simplify right side
87,552,128.80x = 11,341,205,332,660,042 - Step 5: Solve for x
x = 11,341,205,332,660,042/87,552,128.80 - Step 6: Final answer
x = 129,536,602.80
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1.5x scale
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.