Finding the Fourth Proportional to 7,725,157.44, 10,660,220.64 and 4,287,400.80
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Solution
The fourth proportional to 7,725,157.44, 10,660,220.64 and 4,287,400.80 is: 5,916,337.48
Step by Step Solution
- Step 1: Write the proportion equation
7,725,157.44 : 10,660,220.64 = 4,287,400.80 : x - Step 2: Convert to fraction form
7,725,157.44/10,660,220.64 = 4,287,400.80/x - Step 3: Cross multiply
7,725,157.44x = 10,660,220.64 × 4,287,400.80 - Step 4: Simplify right side
7,725,157.44x = 45,704,638,500,112.52 - Step 5: Solve for x
x = 45,704,638,500,112.52/7,725,157.44 - Step 6: Final answer
x = 5,916,337.48
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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.