Finding the Fourth Proportional to 153,668,742.44, 212,064,532.26 and 84,052,592.60
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Solution
The fourth proportional to 153,668,742.44, 212,064,532.26 and 84,052,592.60 is: 115,993,489.97
Step by Step Solution
- Step 1: Write the proportion equation
153,668,742.44 : 212,064,532.26 = 84,052,592.60 : x - Step 2: Convert to fraction form
153,668,742.44/212,064,532.26 = 84,052,592.60/x - Step 3: Cross multiply
153,668,742.44x = 212,064,532.26 × 84,052,592.60 - Step 4: Simplify right side
153,668,742.44x = 17,824,573,734,959,336 - Step 5: Solve for x
x = 17,824,573,734,959,336/153,668,742.44 - Step 6: Final answer
x = 115,993,489.97
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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.