Finding the Fourth Proportional to 8,085,707.20, 12,128,560.80 and 5,959,943.20
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Solution
The fourth proportional to 8,085,707.20, 12,128,560.80 and 5,959,943.20 is: 8,939,914.80
Step by Step Solution
- Step 1: Write the proportion equation
8,085,707.20 : 12,128,560.80 = 5,959,943.20 : x - Step 2: Convert to fraction form
8,085,707.20/12,128,560.80 = 5,959,943.20/x - Step 3: Cross multiply
8,085,707.20x = 12,128,560.80 × 5,959,943.20 - Step 4: Simplify right side
8,085,707.20x = 72,285,533,465,746.56 - Step 5: Solve for x
x = 72,285,533,465,746.56/8,085,707.20 - Step 6: Final answer
x = 8,939,914.80
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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.