Finding the Fourth Proportional to 19,574,632.80, 29,361,949.20 and 5,391,208.80
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Solution
The fourth proportional to 19,574,632.80, 29,361,949.20 and 5,391,208.80 is: 8,086,813.20
Step by Step Solution
- Step 1: Write the proportion equation
19,574,632.80 : 29,361,949.20 = 5,391,208.80 : x - Step 2: Convert to fraction form
19,574,632.80/29,361,949.20 = 5,391,208.80/x - Step 3: Cross multiply
19,574,632.80x = 29,361,949.20 × 5,391,208.80 - Step 4: Simplify right side
19,574,632.80x = 158,296,398,912,192.94 - Step 5: Solve for x
x = 158,296,398,912,192.94/19,574,632.80 - Step 6: Final answer
x = 8,086,813.20
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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.