Finding the Fourth Proportional to 21,470,341.56, 29,626,859.36 and 12,766,832.44
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Solution
The fourth proportional to 21,470,341.56, 29,626,859.36 and 12,766,832.44 is: 17,616,913.46
Step by Step Solution
- Step 1: Write the proportion equation
21,470,341.56 : 29,626,859.36 = 12,766,832.44 : x - Step 2: Convert to fraction form
21,470,341.56/29,626,859.36 = 12,766,832.44/x - Step 3: Cross multiply
21,470,341.56x = 29,626,859.36 × 12,766,832.44 - Step 4: Simplify right side
21,470,341.56x = 378,241,149,172,565.62 - Step 5: Solve for x
x = 378,241,149,172,565.62/21,470,341.56 - Step 6: Final answer
x = 17,616,913.46
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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.