Finding the Fourth Proportional to 288,390,306.93, 431,868,015.04 and 201,722,908.65
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Solution
The fourth proportional to 288,390,306.93, 431,868,015.04 and 201,722,908.65 is: 302,082,525.15
Step by Step Solution
- Step 1: Write the proportion equation
288,390,306.93 : 431,868,015.04 = 201,722,908.65 : x - Step 2: Convert to fraction form
288,390,306.93/431,868,015.04 = 201,722,908.65/x - Step 3: Cross multiply
288,390,306.93x = 431,868,015.04 × 201,722,908.65 - Step 4: Simplify right side
288,390,306.93x = 87,117,672,146,770,752 - Step 5: Solve for x
x = 87,117,672,146,770,752/288,390,306.93 - Step 6: Final answer
x = 302,082,525.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.