Finding the Fourth Proportional to 29,317,040.76, 40,440,707.40 and 18,284,636.88
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Solution
The fourth proportional to 29,317,040.76, 40,440,707.40 and 18,284,636.88 is: 25,222,315.45
Step by Step Solution
- Step 1: Write the proportion equation
29,317,040.76 : 40,440,707.40 = 18,284,636.88 : x - Step 2: Convert to fraction form
29,317,040.76/40,440,707.40 = 18,284,636.88/x - Step 3: Cross multiply
29,317,040.76x = 40,440,707.40 × 18,284,636.88 - Step 4: Simplify right side
29,317,040.76x = 739,443,649,979,328.88 - Step 5: Solve for x
x = 739,443,649,979,328.88/29,317,040.76 - Step 6: Final answer
x = 25,222,315.45
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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.