Finding the Fourth Proportional to 372,307,220.88, 513,777,696.58 and 205,059,056.73
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Solution
The fourth proportional to 372,307,220.88, 513,777,696.58 and 205,059,056.73 is: 282,978,045.87
Step by Step Solution
- Step 1: Write the proportion equation
372,307,220.88 : 513,777,696.58 = 205,059,056.73 : x - Step 2: Convert to fraction form
372,307,220.88/513,777,696.58 = 205,059,056.73/x - Step 3: Cross multiply
372,307,220.88x = 513,777,696.58 × 205,059,056.73 - Step 4: Simplify right side
372,307,220.88x = 105,354,769,826,784,176 - Step 5: Solve for x
x = 105,354,769,826,784,176/372,307,220.88 - Step 6: Final answer
x = 282,978,045.87
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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.