Finding the Fourth Proportional to 51,351,416.88, 70,872,220.76 and 31,778,609.28
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Solution
The fourth proportional to 51,351,416.88, 70,872,220.76 and 31,778,609.28 is: 43,858,977.01
Step by Step Solution
- Step 1: Write the proportion equation
51,351,416.88 : 70,872,220.76 = 31,778,609.28 : x - Step 2: Convert to fraction form
51,351,416.88/70,872,220.76 = 31,778,609.28/x - Step 3: Cross multiply
51,351,416.88x = 70,872,220.76 × 31,778,609.28 - Step 4: Simplify right side
51,351,416.88x = 2,252,220,612,337,945 - Step 5: Solve for x
x = 2,252,220,612,337,945/51,351,416.88 - Step 6: Final answer
x = 43,858,977.01
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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.