Finding the Fourth Proportional to 79,151,528.40, 118,727,292.60 and 65,546,638.80
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Solution
The fourth proportional to 79,151,528.40, 118,727,292.60 and 65,546,638.80 is: 98,319,958.20
Step by Step Solution
- Step 1: Write the proportion equation
79,151,528.40 : 118,727,292.60 = 65,546,638.80 : x - Step 2: Convert to fraction form
79,151,528.40/118,727,292.60 = 65,546,638.80/x - Step 3: Cross multiply
79,151,528.40x = 118,727,292.60 × 65,546,638.80 - Step 4: Simplify right side
79,151,528.40x = 7,782,174,963,754,112 - Step 5: Solve for x
x = 7,782,174,963,754,112/79,151,528.40 - Step 6: Final answer
x = 98,319,958.20
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1.5x scale
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.