Finding the Fourth Proportional to 7,879,104.06, 10,878,224.20 and 4,942,946.82
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Solution
The fourth proportional to 7,879,104.06, 10,878,224.20 and 4,942,946.82 is: 6,824,441.37
Step by Step Solution
- Step 1: Write the proportion equation
7,879,104.06 : 10,878,224.20 = 4,942,946.82 : x - Step 2: Convert to fraction form
7,879,104.06/10,878,224.20 = 4,942,946.82/x - Step 3: Cross multiply
7,879,104.06x = 10,878,224.20 × 4,942,946.82 - Step 4: Simplify right side
7,879,104.06x = 53,770,483,716,637.05 - Step 5: Solve for x
x = 53,770,483,716,637.05/7,879,104.06 - Step 6: Final answer
x = 6,824,441.37
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1.5x scale
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.