Finding the Fourth Proportional to 3,148,187.40, 4,714,407.90 and 2,518,331.40
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Solution
The fourth proportional to 3,148,187.40, 4,714,407.90 and 2,518,331.40 is: 3,771,199.09
Step by Step Solution
- Step 1: Write the proportion equation
3,148,187.40 : 4,714,407.90 = 2,518,331.40 : x - Step 2: Convert to fraction form
3,148,187.40/4,714,407.90 = 2,518,331.40/x - Step 3: Cross multiply
3,148,187.40x = 4,714,407.90 × 2,518,331.40 - Step 4: Simplify right side
3,148,187.40x = 11,872,441,446,978.06 - Step 5: Solve for x
x = 11,872,441,446,978.06/3,148,187.40 - Step 6: Final answer
x = 3,771,199.09
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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.