Finding the Fourth Proportional to 3,860,669.48, 5,325,510.35 and 2,407,842.65
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Solution
The fourth proportional to 3,860,669.48, 5,325,510.35 and 2,407,842.65 is: 3,321,442.32
Step by Step Solution
- Step 1: Write the proportion equation
3,860,669.48 : 5,325,510.35 = 2,407,842.65 : x - Step 2: Convert to fraction form
3,860,669.48/5,325,510.35 = 2,407,842.65/x - Step 3: Cross multiply
3,860,669.48x = 5,325,510.35 × 2,407,842.65 - Step 4: Simplify right side
3,860,669.48x = 12,822,990,973,079.81 - Step 5: Solve for x
x = 12,822,990,973,079.81/3,860,669.48 - Step 6: Final answer
x = 3,321,442.32
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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.