Finding the Fourth Proportional to 28,266,596.52, 38,997,969.30 and 18,482,767.68
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Solution
The fourth proportional to 28,266,596.52, 38,997,969.30 and 18,482,767.68 is: 25,499,723.89
Step by Step Solution
- Step 1: Write the proportion equation
28,266,596.52 : 38,997,969.30 = 18,482,767.68 : x - Step 2: Convert to fraction form
28,266,596.52/38,997,969.30 = 18,482,767.68/x - Step 3: Cross multiply
28,266,596.52x = 38,997,969.30 × 18,482,767.68 - Step 4: Simplify right side
28,266,596.52x = 720,790,406,563,672.12 - Step 5: Solve for x
x = 720,790,406,563,672.12/28,266,596.52 - Step 6: Final answer
x = 25,499,723.89
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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.