Finding the Fourth Proportional to 230,943,909.57, 318,699,956.42 and 125,095,329.38
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Solution
The fourth proportional to 230,943,909.57, 318,699,956.42 and 125,095,329.38 is: 172,630,125.18
Step by Step Solution
- Step 1: Write the proportion equation
230,943,909.57 : 318,699,956.42 = 125,095,329.38 : x - Step 2: Convert to fraction form
230,943,909.57/318,699,956.42 = 125,095,329.38/x - Step 3: Cross multiply
230,943,909.57x = 318,699,956.42 × 125,095,329.38 - Step 4: Simplify right side
230,943,909.57x = 39,867,876,019,532,568 - Step 5: Solve for x
x = 39,867,876,019,532,568/230,943,909.57 - Step 6: Final answer
x = 172,630,125.18
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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.