Finding the Fourth Proportional to 12,283,774.12, 18,387,869.82 and 8,014,750.12
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Solution
The fourth proportional to 12,283,774.12, 18,387,869.82 and 8,014,750.12 is: 11,997,467.59
Step by Step Solution
- Step 1: Write the proportion equation
12,283,774.12 : 18,387,869.82 = 8,014,750.12 : x - Step 2: Convert to fraction form
12,283,774.12/18,387,869.82 = 8,014,750.12/x - Step 3: Cross multiply
12,283,774.12x = 18,387,869.82 × 8,014,750.12 - Step 4: Simplify right side
12,283,774.12x = 147,374,181,846,389.38 - Step 5: Solve for x
x = 147,374,181,846,389.38/12,283,774.12 - Step 6: Final answer
x = 11,997,467.59
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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.