Finding the Fourth Proportional to 48,407,999.80, 72,624,830.10 and 21,102,575.80
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Solution
The fourth proportional to 48,407,999.80, 72,624,830.10 and 21,102,575.80 is: 31,659,456.88
Step by Step Solution
- Step 1: Write the proportion equation
48,407,999.80 : 72,624,830.10 = 21,102,575.80 : x - Step 2: Convert to fraction form
48,407,999.80/72,624,830.10 = 21,102,575.80/x - Step 3: Cross multiply
48,407,999.80x = 72,624,830.10 × 21,102,575.80 - Step 4: Simplify right side
48,407,999.80x = 1,532,570,982,147,371.50 - Step 5: Solve for x
x = 1,532,570,982,147,371.50/48,407,999.80 - Step 6: Final answer
x = 31,659,456.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.