Finding the Fourth Proportional to 18,357,871.80, 27,558,021.60 and 9,854,815.80
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Solution
The fourth proportional to 18,357,871.80, 27,558,021.60 and 9,854,815.80 is: 14,793,611.68
Step by Step Solution
- Step 1: Write the proportion equation
18,357,871.80 : 27,558,021.60 = 9,854,815.80 : x - Step 2: Convert to fraction form
18,357,871.80/27,558,021.60 = 9,854,815.80/x - Step 3: Cross multiply
18,357,871.80x = 27,558,021.60 × 9,854,815.80 - Step 4: Simplify right side
18,357,871.80x = 271,579,226,680,421.31 - Step 5: Solve for x
x = 271,579,226,680,421.31/18,357,871.80 - Step 6: Final answer
x = 14,793,611.68
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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.