Finding the Fourth Proportional to 3,929,991.04, 5,423,349.30 and 2,187,632.80
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Solution
The fourth proportional to 3,929,991.04, 5,423,349.30 and 2,187,632.80 is: 3,018,911.92
Step by Step Solution
- Step 1: Write the proportion equation
3,929,991.04 : 5,423,349.30 = 2,187,632.80 : x - Step 2: Convert to fraction form
3,929,991.04/5,423,349.30 = 2,187,632.80/x - Step 3: Cross multiply
3,929,991.04x = 5,423,349.30 × 2,187,632.80 - Step 4: Simplify right side
3,929,991.04x = 11,864,296,814,537.04 - Step 5: Solve for x
x = 11,864,296,814,537.04/3,929,991.04 - Step 6: Final answer
x = 3,018,911.92
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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.