Finding the Fourth Proportional to 143,505,759.79, 197,932,208.06 and 108,225,049.99
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Solution
The fourth proportional to 143,505,759.79, 197,932,208.06 and 108,225,049.99 is: 149,270,824.69
Step by Step Solution
- Step 1: Write the proportion equation
143,505,759.79 : 197,932,208.06 = 108,225,049.99 : x - Step 2: Convert to fraction form
143,505,759.79/197,932,208.06 = 108,225,049.99/x - Step 3: Cross multiply
143,505,759.79x = 197,932,208.06 × 108,225,049.99 - Step 4: Simplify right side
143,505,759.79x = 21,421,223,111,700,312 - Step 5: Solve for x
x = 21,421,223,111,700,312/143,505,759.79 - Step 6: Final answer
x = 149,270,824.69
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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.