Finding the Fourth Proportional to 18,430,090.52, 25,438,584.20 and 10,697,623.97
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Solution
The fourth proportional to 18,430,090.52, 25,438,584.20 and 10,697,623.97 is: 14,765,657.70
Step by Step Solution
- Step 1: Write the proportion equation
18,430,090.52 : 25,438,584.20 = 10,697,623.97 : x - Step 2: Convert to fraction form
18,430,090.52/25,438,584.20 = 10,697,623.97/x - Step 3: Cross multiply
18,430,090.52x = 25,438,584.20 × 10,697,623.97 - Step 4: Simplify right side
18,430,090.52x = 272,132,407,920,102.22 - Step 5: Solve for x
x = 272,132,407,920,102.22/18,430,090.52 - Step 6: Final answer
x = 14,765,657.70
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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.