Finding the Fourth Proportional to 121,939,301.46, 168,274,124.28 and 66,183,525.48
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Solution
The fourth proportional to 121,939,301.46, 168,274,124.28 and 66,183,525.48 is: 91,332,119.00
Step by Step Solution
- Step 1: Write the proportion equation
121,939,301.46 : 168,274,124.28 = 66,183,525.48 : x - Step 2: Convert to fraction form
121,939,301.46/168,274,124.28 = 66,183,525.48/x - Step 3: Cross multiply
121,939,301.46x = 168,274,124.28 × 66,183,525.48 - Step 4: Simplify right side
121,939,301.46x = 11,136,974,791,910,066 - Step 5: Solve for x
x = 11,136,974,791,910,066/121,939,301.46 - Step 6: Final answer
x = 91,332,119.00
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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.