Finding the Fourth Proportional to 4,403,480.10, 6,605,220.15 and 3,128,021.70
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Solution
The fourth proportional to 4,403,480.10, 6,605,220.15 and 3,128,021.70 is: 4,692,032.55
Step by Step Solution
- Step 1: Write the proportion equation
4,403,480.10 : 6,605,220.15 = 3,128,021.70 : x - Step 2: Convert to fraction form
4,403,480.10/6,605,220.15 = 3,128,021.70/x - Step 3: Cross multiply
4,403,480.10x = 6,605,220.15 × 3,128,021.70 - Step 4: Simplify right side
4,403,480.10x = 20,661,271,962,477.26 - Step 5: Solve for x
x = 20,661,271,962,477.26/4,403,480.10 - Step 6: Final answer
x = 4,692,032.55
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Similar ratio
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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.