Finding the Fourth Proportional to 29,307,888.70, 40,418,420.47 and 18,295,660.26
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Solution
The fourth proportional to 29,307,888.70, 40,418,420.47 and 18,295,660.26 is: 25,231,489.61
Step by Step Solution
- Step 1: Write the proportion equation
29,307,888.70 : 40,418,420.47 = 18,295,660.26 : x - Step 2: Convert to fraction form
29,307,888.70/40,418,420.47 = 18,295,660.26/x - Step 3: Cross multiply
29,307,888.70x = 40,418,420.47 × 18,295,660.26 - Step 4: Simplify right side
29,307,888.70x = 739,481,689,164,949.62 - Step 5: Solve for x
x = 739,481,689,164,949.62/29,307,888.70 - Step 6: Final answer
x = 25,231,489.61
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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.