Finding the Fourth Proportional to 126,752,564.80, 190,128,847.20 and 58,728,116.80
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Solution
The fourth proportional to 126,752,564.80, 190,128,847.20 and 58,728,116.80 is: 88,092,175.20
Step by Step Solution
- Step 1: Write the proportion equation
126,752,564.80 : 190,128,847.20 = 58,728,116.80 : x - Step 2: Convert to fraction form
126,752,564.80/190,128,847.20 = 58,728,116.80/x - Step 3: Cross multiply
126,752,564.80x = 190,128,847.20 × 58,728,116.80 - Step 4: Simplify right side
126,752,564.80x = 11,165,909,145,410,952 - Step 5: Solve for x
x = 11,165,909,145,410,952/126,752,564.80 - Step 6: Final answer
x = 88,092,175.20
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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.