Finding the Fourth Proportional to 119,343,947.97, 179,015,971.62 and 53,688,397.62
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Solution
The fourth proportional to 119,343,947.97, 179,015,971.62 and 53,688,397.62 is: 80,532,618.78
Step by Step Solution
- Step 1: Write the proportion equation
119,343,947.97 : 179,015,971.62 = 53,688,397.62 : x - Step 2: Convert to fraction form
119,343,947.97/179,015,971.62 = 53,688,397.62/x - Step 3: Cross multiply
119,343,947.97x = 179,015,971.62 × 53,688,397.62 - Step 4: Simplify right side
119,343,947.97x = 9,611,080,665,537,838 - Step 5: Solve for x
x = 9,611,080,665,537,838/119,343,947.97 - Step 6: Final answer
x = 80,532,618.78
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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.