Finding the Fourth Proportional to 15,644,780.06, 21,590,794.23 and 8,769,263.90
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Solution
The fourth proportional to 15,644,780.06, 21,590,794.23 and 8,769,263.90 is: 12,102,143.44
Step by Step Solution
- Step 1: Write the proportion equation
15,644,780.06 : 21,590,794.23 = 8,769,263.90 : x - Step 2: Convert to fraction form
15,644,780.06/21,590,794.23 = 8,769,263.90/x - Step 3: Cross multiply
15,644,780.06x = 21,590,794.23 × 8,769,263.90 - Step 4: Simplify right side
15,644,780.06x = 189,335,372,413,467.31 - Step 5: Solve for x
x = 189,335,372,413,467.31/15,644,780.06 - Step 6: Final answer
x = 12,102,143.44
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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.