Finding the Fourth Proportional to 117,632,291.23, 162,337,040.67 and 65,425,102.03
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Solution
The fourth proportional to 117,632,291.23, 162,337,040.67 and 65,425,102.03 is: 90,289,131.82
Step by Step Solution
- Step 1: Write the proportion equation
117,632,291.23 : 162,337,040.67 = 65,425,102.03 : x - Step 2: Convert to fraction form
117,632,291.23/162,337,040.67 = 65,425,102.03/x - Step 3: Cross multiply
117,632,291.23x = 162,337,040.67 × 65,425,102.03 - Step 4: Simplify right side
117,632,291.23x = 10,620,917,449,083,008 - Step 5: Solve for x
x = 10,620,917,449,083,008/117,632,291.23 - Step 6: Final answer
x = 90,289,131.82
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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.