Finding the Fourth Proportional to 231,125,394.26, 318,973,222.29 and 126,723,643.74
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Solution
The fourth proportional to 231,125,394.26, 318,973,222.29 and 126,723,643.74 is: 174,889,691.86
Step by Step Solution
- Step 1: Write the proportion equation
231,125,394.26 : 318,973,222.29 = 126,723,643.74 : x - Step 2: Convert to fraction form
231,125,394.26/318,973,222.29 = 126,723,643.74/x - Step 3: Cross multiply
231,125,394.26x = 318,973,222.29 × 126,723,643.74 - Step 4: Simplify right side
231,125,394.26x = 40,421,448,982,574,752 - Step 5: Solve for x
x = 40,421,448,982,574,752/231,125,394.26 - Step 6: Final answer
x = 174,889,691.86
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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.