Finding the Fourth Proportional to 8,135,867.47, 12,131,919.89 and 8,062,843.54
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Solution
The fourth proportional to 8,135,867.47, 12,131,919.89 and 8,062,843.54 is: 12,023,029.17
Step by Step Solution
- Step 1: Write the proportion equation
8,135,867.47 : 12,131,919.89 = 8,062,843.54 : x - Step 2: Convert to fraction form
8,135,867.47/12,131,919.89 = 8,062,843.54/x - Step 3: Cross multiply
8,135,867.47x = 12,131,919.89 × 8,062,843.54 - Step 4: Simplify right side
8,135,867.47x = 97,817,771,849,728.30 - Step 5: Solve for x
x = 97,817,771,849,728.30/8,135,867.47 - Step 6: Final answer
x = 12,023,029.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.