Finding the Fourth Proportional to 3,963,658.55, 5,470,232.74 and 2,221,623.85
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Solution
The fourth proportional to 3,963,658.55, 5,470,232.74 and 2,221,623.85 is: 3,066,056.11
Step by Step Solution
- Step 1: Write the proportion equation
3,963,658.55 : 5,470,232.74 = 2,221,623.85 : x - Step 2: Convert to fraction form
3,963,658.55/5,470,232.74 = 2,221,623.85/x - Step 3: Cross multiply
3,963,658.55x = 5,470,232.74 × 2,221,623.85 - Step 4: Simplify right side
3,963,658.55x = 12,152,799,501,005.21 - Step 5: Solve for x
x = 12,152,799,501,005.21/3,963,658.55 - Step 6: Final answer
x = 3,066,056.11
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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.