Finding the Fourth Proportional to 231,830,213.80, 347,745,320.70 and 124,334,789.80
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Solution
The fourth proportional to 231,830,213.80, 347,745,320.70 and 124,334,789.80 is: 186,502,184.70
Step by Step Solution
- Step 1: Write the proportion equation
231,830,213.80 : 347,745,320.70 = 124,334,789.80 : x - Step 2: Convert to fraction form
231,830,213.80/347,745,320.70 = 124,334,789.80/x - Step 3: Cross multiply
231,830,213.80x = 347,745,320.70 × 124,334,789.80 - Step 4: Simplify right side
231,830,213.80x = 43,236,841,353,168,088 - Step 5: Solve for x
x = 43,236,841,353,168,088/231,830,213.80 - Step 6: Final answer
x = 186,502,184.70
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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.