Finding the Fourth Proportional to 8,756,440.80, 13,142,955.60 and 5,397,208.80
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Solution
The fourth proportional to 8,756,440.80, 13,142,955.60 and 5,397,208.80 is: 8,100,925.62
Step by Step Solution
- Step 1: Write the proportion equation
8,756,440.80 : 13,142,955.60 = 5,397,208.80 : x - Step 2: Convert to fraction form
8,756,440.80/13,142,955.60 = 5,397,208.80/x - Step 3: Cross multiply
8,756,440.80x = 13,142,955.60 × 5,397,208.80 - Step 4: Simplify right side
8,756,440.80x = 70,935,275,622,329.28 - Step 5: Solve for x
x = 70,935,275,622,329.28/8,756,440.80 - Step 6: Final answer
x = 8,100,925.62
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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.