Finding the Fourth Proportional to 4,021,136.32, 5,549,204.95 and 2,185,598.84
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Solution
The fourth proportional to 4,021,136.32, 5,549,204.95 and 2,185,598.84 is: 3,016,146.42
Step by Step Solution
- Step 1: Write the proportion equation
4,021,136.32 : 5,549,204.95 = 2,185,598.84 : x - Step 2: Convert to fraction form
4,021,136.32/5,549,204.95 = 2,185,598.84/x - Step 3: Cross multiply
4,021,136.32x = 5,549,204.95 × 2,185,598.84 - Step 4: Simplify right side
4,021,136.32x = 12,128,335,904,137.21 - Step 5: Solve for x
x = 12,128,335,904,137.21/4,021,136.32 - Step 6: Final answer
x = 3,016,146.42
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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.