Finding the Fourth Proportional to 281,010,505.94, 387,799,091.30 and 153,849,063.99
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Solution
The fourth proportional to 281,010,505.94, 387,799,091.30 and 153,849,063.99 is: 212,314,222.96
Step by Step Solution
- Step 1: Write the proportion equation
281,010,505.94 : 387,799,091.30 = 153,849,063.99 : x - Step 2: Convert to fraction form
281,010,505.94/387,799,091.30 = 153,849,063.99/x - Step 3: Cross multiply
281,010,505.94x = 387,799,091.30 × 153,849,063.99 - Step 4: Simplify right side
281,010,505.94x = 59,662,527,211,908,312 - Step 5: Solve for x
x = 59,662,527,211,908,312/281,010,505.94 - Step 6: Final answer
x = 212,314,222.96
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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.