Finding the Fourth Proportional to 126,567,116.87, 190,799,321.96 and 118,130,128.12
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Solution
The fourth proportional to 126,567,116.87, 190,799,321.96 and 118,130,128.12 is: 178,080,601.86
Step by Step Solution
- Step 1: Write the proportion equation
126,567,116.87 : 190,799,321.96 = 118,130,128.12 : x - Step 2: Convert to fraction form
126,567,116.87/190,799,321.96 = 118,130,128.12/x - Step 3: Cross multiply
126,567,116.87x = 190,799,321.96 × 118,130,128.12 - Step 4: Simplify right side
126,567,116.87x = 22,539,148,348,343,932 - Step 5: Solve for x
x = 22,539,148,348,343,932/126,567,116.87 - Step 6: Final answer
x = 178,080,601.86
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.