Finding the Fourth Proportional to 21,438,899.60, 32,151,438.48 and 7,058,543.54
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Solution
The fourth proportional to 21,438,899.60, 32,151,438.48 and 7,058,543.54 is: 10,585,539.96
Step by Step Solution
- Step 1: Write the proportion equation
21,438,899.60 : 32,151,438.48 = 7,058,543.54 : x - Step 2: Convert to fraction form
21,438,899.60/32,151,438.48 = 7,058,543.54/x - Step 3: Cross multiply
21,438,899.60x = 32,151,438.48 × 7,058,543.54 - Step 4: Simplify right side
21,438,899.60x = 226,942,328,384,711.44 - Step 5: Solve for x
x = 226,942,328,384,711.44/21,438,899.60 - Step 6: Final answer
x = 10,585,539.96
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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.