Finding the Fourth Proportional to 22,815,204.75, 31,484,982.60 and 13,157,412.75
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Solution
The fourth proportional to 22,815,204.75, 31,484,982.60 and 13,157,412.75 is: 18,157,229.62
Step by Step Solution
- Step 1: Write the proportion equation
22,815,204.75 : 31,484,982.60 = 13,157,412.75 : x - Step 2: Convert to fraction form
22,815,204.75/31,484,982.60 = 13,157,412.75/x - Step 3: Cross multiply
22,815,204.75x = 31,484,982.60 × 13,157,412.75 - Step 4: Simplify right side
22,815,204.75x = 414,260,911,494,768.19 - Step 5: Solve for x
x = 414,260,911,494,768.19/22,815,204.75 - Step 6: Final answer
x = 18,157,229.62
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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.