Finding the Fourth Proportional to 231,146,950.68, 318,974,327.40 and 126,722,730.84
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Solution
The fourth proportional to 231,146,950.68, 318,974,327.40 and 126,722,730.84 is: 174,872,728.01
Step by Step Solution
- Step 1: Write the proportion equation
231,146,950.68 : 318,974,327.40 = 126,722,730.84 : x - Step 2: Convert to fraction form
231,146,950.68/318,974,327.40 = 126,722,730.84/x - Step 3: Cross multiply
231,146,950.68x = 318,974,327.40 × 126,722,730.84 - Step 4: Simplify right side
231,146,950.68x = 40,421,297,835,980,232 - Step 5: Solve for x
x = 40,421,297,835,980,232/231,146,950.68 - Step 6: Final answer
x = 174,872,728.01
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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.