Finding the Fourth Proportional to 150,204,912.06, 207,216,749.70 and 90,632,980.12
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Solution
The fourth proportional to 150,204,912.06, 207,216,749.70 and 90,632,980.12 is: 125,033,670.99
Step by Step Solution
- Step 1: Write the proportion equation
150,204,912.06 : 207,216,749.70 = 90,632,980.12 : x - Step 2: Convert to fraction form
150,204,912.06/207,216,749.70 = 90,632,980.12/x - Step 3: Cross multiply
150,204,912.06x = 207,216,749.70 × 90,632,980.12 - Step 4: Simplify right side
150,204,912.06x = 18,780,671,556,091,116 - Step 5: Solve for x
x = 18,780,671,556,091,116/150,204,912.06 - Step 6: Final answer
x = 125,033,670.99
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1.5x scale
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.